Data

Problem 1401

Given a stem-and-leaf plot, find the mean, median, standard deviation, and range. Round to three decimal places.

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Problem 1402

Find the min, max, range, mean (to 2 decimals), and standard deviation of TV hours for 24 kids: 77, 38, 35, 54, 30, 32, 85, 12, 70, 91, 25, 71, 95, 90, 99, 11, 66, 74, 90, 78, 34, 77, 39, 62.

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Problem 1403

Calculate the sample standard deviation for the aptitude scores with frequencies: 0 (2), 1 (6), 2 (0), 3 (0), 4 (3), 5 (4).

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Problem 1404

Calculate the sample standard deviation of the following musical aptitude scores: 0 (3), 1 (3), 2 (1), 3 (8), 4 (3), 5 (5).

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Problem 1405

Is the set $\{(-4,19),(-3,12),(0,3),(3,12),(5,28)\}$ a function? If yes, find the domain and range.

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Problem 1406

Find the five-number summary (min, Q1, median, Q3, max) for the dataset: 53, 18, 54, 65, 48, 70, 38, 63, 28, 41, 45, 33, 52, 20, 43, 23, 30, 79, 42, 89.

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Problem 1407

Find the five-number summary (min, Q1, median, Q3, max) for the data set: 25, 53, 81, 60, 54, 46, 13, 52, 43, 39, 36, 10, 41, 37, 77, 57, 56.

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Problem 1408

Find the five-number summary and IQR for the data: 25, 53, 81, 60, 54, 46, 13, 52, 43, 39, 36, 10, 41, 37, 77, 57, 56. Identify outlier bounds and any outliers.

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Problem 1409

Find the five number summary, range, and interquartile range from the given stem & leaf plot data.

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Problem 1410

Find the five-number summary for the data: 25, 53, 81, 60, 54, 46, 13, 52, 43, 39, 36, 10, 41, 37, 77, 57, 56. Determine IQR, lower & upper outlier bounds, and any outliers.

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Problem 1411

Find the five-number summary for the data: 10, 12, 21, 35, 36, 41, 42, 43, 44, 46, 47, 49, 52, 58, 59, 60, 83, 88. Calculate IQR, outlier bounds, and any outliers.

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Problem 1412

Is the frequency distribution normal based on the criteria? Choose A, B, or C based on the given temperature ranges and frequencies.

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Problem 1413

Estimate $y$ for $x=1$ and $x=6$ using the model $y=0.88x+18.69$ . What are the values?

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Problem 1414

Given the function $f(x)$ from a table, verify if: a. $h(3)=\frac{-4}{3}$ , c. $f(-1)=3$ , e. $g(2)=2$ or -3.

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Problem 1415

Calculate the correlation coefficient $r$ and the regression line for the given sea level pressure and wind speed data. Then predict wind speed for 977 millibars. Round appropriately.

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Problem 1416

Determine the correlation coefficient $r$ , regression line, and predict weight for a 124-inch alligator. Is it valid for 20 inches?

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Problem 1417

Does the point $(10.5,42)$ make sense for bracelet lengths and beads? Explain based on the given data.

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Problem 1418

Which set of numbers can be the lengths of a triangle's sides? (A) $2,2,4$ (B) $6,12,5$ (C) $7,4,3$ (D) $9,8,15$

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Problem 1419

Which teacher's quiz table shows a proportional relationship between the number of questions and point value?

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Problem 1420

Subtract 1,892 from 3,300. What is the result?

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Problem 1421

Graph the cost of pumpkins ( $0, 4, 8, 12, 16$ for $0, 1, 2, 3, 4$ pumpkins) and explain if it's proportional.

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Problem 1422

Graph the relationship between Celsius and Fahrenheit temperatures. Is Fahrenheit proportional to Celsius? Explain.

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Problem 1423

Calculate total sales minus refunds for Sara's Olde Curiosity Shop, which has a 3% fee. Sales: \$70.63, \$108.54, \$186.18, \$131.93, \$92.09, \$180.38, \$165.82, \$187.43; Refunds: \$26.32, \$12.87, \$26.12.

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Problem 1424

Find the mean, median, mode, and standard deviation of these salaries: 98000, 115000, 75000, 88000, 65000, 107000, 72000, 71000, 88000, 57000, 88000, 73000, 97000, 85000, 87000, 73000, 93000, 88000, 71000, 65000, 87000, 83000, 75000, 44000, 81000, 76000, 81000, 89000.

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Problem 1425

Calculate the mean, median, mode, and standard deviation of the given salaries. Is \$115,000 an outlier?

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Problem 1426

Find the mean (to two decimal places) of these ages: 18, 18, 18, 18, 18, 19, 19, 19, 20, 22, 22, 23, 23, 23, 24, 25, 26, 26, 29, 33, 64.

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Problem 1427

Find the mean price paid by the elderly for antidepressants from the list: 10, 20, 42, 34, 31, 17, 21, 53.33, 19, 55, 23, 57, 34, 55, 61, 44, 41, 39, 38, 47, 30, 55, 67. Round to a whole number.

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Problem 1428

Calculate the mean, median, and mode of the prices: 10, 20, 42, 34, 31, 17, 21, 53, 33, 19, 55, 23, 57, 34, 55, 61, 44, 41, 39, 38, 47, 30, 55, 67.

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Problem 1429

Calculate the mean and median of these prices: 10, 20, 42, 34, 31, 17, 21, 53, 33, 19, 55, 23, 57, 34, 55, 61, 44, 41, 39, 38, 47, 30, 55, 67.

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Problem 1430

Redraw the reactance diagram for a 3-phase system with given equipment ratings. Find per-unit reactances and voltages at buses 1 and 2.

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Problem 1431

Calculate the energy absorbed by 100g of water with specific heat 4.18 J/g°C, initial temp 21.2°C, final temp 46.2°C.

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Problem 1432

Heights of friends: 62, 66, 65, 66, 67. Find the domain, range, and determine if it's a function.

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Problem 1433

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Problem 1434

Find an equation for the average speed of an airplane in miles $(M)$ per hour $(h)$ based on its travel data.

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Problem 1435

Estimate the US federal tax revenue per taxpayer in 2018 given 122,176,626 taxpayers and \$3,307,673,720,131 revenue.

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Problem 1436

Complete the table for $\theta = 225^{\circ}$ : find $\cos \theta$ and $\cot \theta$ given $\sin \theta = -\frac{\sqrt{2}}{2}$ .

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Problem 1437

Tax-Exempt Properties A tax collector wishes to see if the mean values of the tax-exempt propertice are different for two cities. The values of the tax-exempt properties for the two samples are shown. The data are given in millions of bollars. At $\alpha=0.10$ , is there endugh evidence tos support the tax eallector's edaim that the mesus sre different? \begin{tabular}{cccc|cccc} \multicolumn{4}{c|}{ Clty A } & \multicolumn{4}{|c}{ Clty B } \\ \hline 10 & 52 & 13 & 27 & 68 & 11 & 81 & 9 \\ 15 & 31 & 16 & 22 & 82 & 50 & 12 & 4 \\ 33 & 38 & 31 & 39 & 20 & 5 & 15 & 12 \\ 19 & 27 & & & 2 & 5 & 16 & \end{tabular} Sand tata to Ercel
Use $\mu_{i}$ for the mean value of tax-exempt properties in City A. Assume the variables are normally distributed and the variances are unequal.
Port 1 of 5
State the hypotheses and identify the claim with the correct hypothesis. $H_{0}: \mu_{1}=\mu_{2} \quad$ net claim $\quad \boldsymbol{}$ $H_{1}: \mu_{1} \neq \mu_{2} \quad$ dolm This hypothesis test is a two-talled $\quad 7$ test.
Part: $1 / 5$
Part 2 of 5
Find the critical value(s). Round the answer(s) to at least three decimal places. If there more than one citical value, separate them with commas. Critical value(s): $\square$

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Problem 1438

The $x$ -axis represents the week and the $y$ -axis represents the grade. According to the data, there should be points $(1,82)$ $(2,88)$ $(3,84)$ $(4,91)$ $(5,90)$ where the $x$ variable represents the week and the $y$ variable represents the student's grade on a particular week. Fo instance, on week 2 , the student's grade was an 88 .
Content attribution
Question According to the information above, did the student's grade increase each week of her summet-term economics cours Select the correct answer below: Yes. From the data we see that the student's grade increased each week, No. From the data we see that the student's grade decreased each week. No. From the data we see that the student's grade fluctuated over time. That information can not be determined from the line graph. FEEDBACK MORE INSTRUCTION SUBM

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Problem 1439

asing a calculator or statisucal sortware, rind the innear regression line for the data in the table below. Enter your answer in the form $y=m x+b$ , with $m$ and $b$ both rounded to two decimal places. \begin{tabular}{|c|c|} \hline $x$ & $y$ \\ \hline 1 & 4.59 \\ \hline 2 & 4.99 \\ \hline 3 & 6.74 \\ \hline 4 & 7.72 \\ \hline 5 & 8.92 \\ \hline 6 & 10.17 \\ \hline 7 & 10.37 \\ \hline \end{tabular}
Provide your answer below: $y=\square \mathrm{r}+\square$

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Problem 1440

4. Based on the information provided below: \begin{tabular}{ll} \begin{tabular}{l} Loan Payment, \$6,625 \\ 18,400 \end{tabular} & Annual mileage, \\ Insurance, \$2,160 & Miles per gallon, 26 \\ \begin{tabular}{l} Parking/Tolls, \$375 \\ fees, \$58 \end{tabular} & License/Registration \end{tabular}
Average gasoline price, $\$ 3.25$ per gallon Oil Changes/Repairs, \$425 a. Calculate the total annual operating cost for this car. b. Calculate the operating cost per mile. (round to 4 decimals)

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Problem 1441

11. Below are the ages of contestants on a game show. Find the standard deviation of the data. $\begin{array}{llllllllllll} 29 & 20 & 21 & 19 & 35 & 28 & 33 & 31 & 26 & 32 & 35 & 22 \end{array}$

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Problem 1442

Amazon.com, Inc. (AMZN) is one of the largest Internet retailers in the world. Best Buy, Co. Inc. (BBY) is a leading retailer of consumer electronics and media products in the United States. Amazon and Best Buy compete in similar markets; however, Best Buy sells through both traditional stores and the Internet, while Amazon sells only through the Internet. Current asset and current liability information from recent financial statements are as follows (in millions): Current assets: Cash Short-term investments Amazon Best Buy $31,750$ 1,980 Accounts receivable 9,500 16,677 1,015 Inventories 17,174 5,409 Other current assets 466 Total current assets $75,101$ 8,870 Current liabilities: Accounts payable $38,192$ 5,257 Other current liabilities 30,199 2,256 Total current liabilities $68,391$ 7,513 Required: a. Compute working capital for each company. Amazon: $million Best Buy:$ million b. Compute the current ratio for each company. Round your answers to one decimal place. Amazon: Best Buy: c. Compute the quick ratio for each company. Round your answers to one decimal place. Amazon: Best Buy: d. Can the working capital be usefully compared between the two companies? Which of the following statements is correct. e. Which company has the greater debt-paying ability according to the current ratio? f. Which company has the greater short-term debt-paying ability according to the quick ratio? g. Why are the results different between (e) and (f)? (Hint: Perform a vertical analysis of the current assets.) Round your answers to one decimal place. If an amount is zero, enter "0". Amazon Best Buy Current assets: Cash % % Short-term investments % % Accounts receivable % %

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Problem 1443

14. A survey was done to see the average amount of money that a single adult spends on a meal eating out. The results are below. \begin{tabular}{lllllllllll} 5 & 10 & 8 & 7 & 6 & 5 & 12 & 15 & 14 & 10 & 13 \\ 15 & 20 & 25 & 14 & 7 & 6 & 8 & 9 & 10 & 12 & 14 \\ 22 & 24 & 21 & 8 & 18 & 16 & 14 & 13 & 12 & 9 & 10 \\ 15 & 10 & 7 & 8 & 9 & 14 & 13 & 16 & 12 & 14 & 18 \\ 12 & 8 & 22 & 17 & 13 & 10 & 9 & 8 & 6 & 5 & 24 \end{tabular}
Make a box and whisker plot of the data. Find the interquartile range.

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Problem 1444

In the sport of American football, teams attempt to advance a ball towards a goal (end zone) by throwing (passing) the ball or by running with the ball (rushing). The position called running back is usually responsible for rushing. A college coach is evaluating two running backs by looking at the number of yards gained for each attempt in the last game. The following table shows the number of yards gained in each of the last 6 rushing attempts for the two players. \begin{tabular}{|l|c|c|c|c|c|c|} \hline & Rush \#1 & Rush \#2 & Rush 3 & Rush \#4 & Rush \#5 & Rush \#6 \\ \hline Player G & 0 & 1 & 5 & 0 & 6 & 3 \\ \hline Player T & -1 & 11 & 9 & 11 & 19 & 2 \\ \hline \end{tabular}
Question $6 / 10$ What is the range of yards per rushing attempt for each player? \begin{tabular}{|c|c|c|c|} \hline & Average & Median & Range \\ \hline Player G & 2.5 & 2 & $\square$ \\ \hline Player T & 8.5 & 10 & $\square$ \\ \hline \end{tabular}

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Problem 1445

5. An insurance agent sells insurance policies by making visits to her clients' homes. She believes that the number of sales should depend, to some degree, on the number of visits made. For the past several years, she kept careful records of the number of visits ( $x$ ) she made each week and the number of people ( $y$ ) who bought insurance that week. For a random sample of 15 such weeks, the $x$ and $y$ values are below: \begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|c|c|c|c|c|} \hline $x$ & 11 & 19 & 16 & 13 & 28 & 5 & 20 & 14 & 22 & 7 & 15 & 29 & 8 & 25 & 16 \\ \hline $y$ & 3 & 11 & 8 & 5 & 8 & 2 & 5 & 6 & 8 & 3 & 5 & 10 & 6 & 10 & 7 \\ \hline \end{tabular}
Find the line of best fit using the calculator. Predict the number of sales if she visits 30 times in a week. Also find the correlation coefficient and the coefficient of determination. $y=a x+b$ $\begin{array}{l} y=.292 x+1.62 \\ .292(30)+1.62=10.38 \end{array}$

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Problem 1446

4. A recent survey asked 100 people if they thought women in the armed forces should be permitted to participate in combat. The results of the survey are shown below. \begin{tabular}{|l|c|l|l|} \hline Gender & Yes & No & Total \\ \hline Male & 32 & 18 & 50 \\ \hline Female & 8 & 42 & 50 \\ \hline Total & 40 & 60 & 100 \\ \hline \end{tabular}
Find the probability that: a) The respondent answered yes, given that the respondent was a female. b) The respondent was a male, given the respondent answered no. c) The respondent was female, given that the respondent answered yes. d) The respondent answered no, given that they were female.
5. If $25 \%$ of U.S. federal prisons inmates are not U.S. citizens, find the probability that 2 randomly selected inmates will not be U.S. citizens.

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Problem 1447

This question: 1 point(s) possible Submit quiz
Data on the weights (Ib) of the contents of cans of diet soda versus the contents of cans of the regular version of the soda is summarized to the right. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal, Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. \begin{tabular}{|c|c|c|} \hline & Diet & Regular \\ \hline $\mu$ & $\mu_{1}$ & $\mu_{2}$ \\ \hline $\boldsymbol{n}$ & 24 & 24 \\ \hline $\bar{x}$ & 0.79386 lb & 0.80841 lb \\ \hline $\mathbf{s}$ & 0.00441 lb & 0.00743 lb \\ \hline \end{tabular}
State the conclusion for the test. A. Fail to reject the null hypothesis. There is sufficient evidence to support the claim that the cans of diet soda have mean weights that are lower than the mean weight for the regular soda. B. Reject the null hypothesis. There is not sufficient evidence to support the claim that the cans of diet soda have mean weights that are lower than the mean weight for the regular soda. C. Fail to reject the null hypothesis. There is not sufficient evidence to support the claim that the cans of diet soda have mean weights that are lower than the Submit quiz 9:06 PM 11/24/2024

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Problem 1448

Complete the table shown to the right for the half-life of a certain radioactive substance. \begin{tabular}{|l|l|} \hline Half-Life & Decay Rate, $\mathbf{k}$ \\ \hline 3851 years & \\ \hline \end{tabular} $k=$ $\square$ (Round to six decimal places as needed.)

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Problem 1449

Suppose a firm produces cables for video games using workers according to the table and that its output sells for $\$ 2.00$ per unit. \begin{tabular}{cccc} \hline Workers & Output & \begin{tabular}{c} Marginal \\ Product \end{tabular} & \begin{tabular}{c} Value of the \\ Marginal \\ Product \end{tabular} \\ \hline 0 & 0 & - & - \\ 1 & 15 & 15 & 30 \\ 2 & 27 & 12 & 24 \\ 3 & 36 & 9 & 18 \\ 4 & 42 & 6 & 12 \\ 5 & 45 & 3 & 6 \\ \hline \end{tabular}
Derive the firm's labor demand curve. Use the line drawing tool to draw the firm's labor demand curve. Label this line 'Demand'.
Carefully follow the instructions above, and only draw the required objects.

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Problem 1450

The following data were gathered to use in reconciling the bank account of Dotson Company: \begin{tabular}{lr} Balance per bank & $\$ 17,980$ \\ Balance per company records & 15,005 \\ Bank service charges & 85 \\ Deposit in transit & 2,650 \\ NSF check & 980 \\ Outstanding checks & 6,690 \end{tabular} a. What is the adjusted balance on the bank reconciliation? $\$ 13,940 \checkmark$
Feedback: * Check My Work a. Set up two columns: one for the company cash account section and the other for the bank balance section. Determine the effect of the data on each column. Recall that when you are finished, the adjusted balances in the bank and company sections of the reconciliation must be equal. If not, an item has been overlooked or treated in error. b. Journalize any necessary entries for Dotson Company based on the bank reconciliation. If an amount box does not require an entry, leave it blank.

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Problem 1451

This test: 25 point(s) possible This question: 3 point(s) possible Submit test
A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal Complete parts (a) and (b) below. Use a 005 significance level for both parts \begin{tabular}{|c|c|c|} \hline & \multicolumn{2}{|c|}{ Proctored } \\ \hline $\mu$ & Nonproctored \\ \hline $\mu$ & $\mu_{1}$ & $\mu_{2}$ \\ \hline $n$ & 35 & 33 \\ \hline $x$ & 76.44 & 83.08 \\ \hline $s$ & 11.74 & 21.48 \\ \hline \end{tabular} D. Keject $\mathrm{H}_{0}$ . Ihere is sufticient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests b. Construct a confidence interval suitable for testing the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. $\square$ $\square$ $<\mu_{1}-\mu_{2}<$ (Round to two decimal places as needed.)

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Problem 1452

Completed: 7 of 8 My score: $7.5 / 8$ pts (93.75\%) Part 2 of 2
Suppose a firm produces hardware that plays video games using workers according to the table below. Suppose also that its output sells for $\$ 100$ per unit. \begin{tabular}{cc} \hline Workers & Output \\ \hline 0 & 0 \\ 1 & 24 \\ 2 & 36 \\ 3 & 42 \\ 4 & 45 \\ 5 & 47 \\ \hline \end{tabular}
Is the firm experiencing the effects predicted by the law of diminishing returns? The firm is experiencing diminishing returns. What is the value of the marginal product of the third worker? The third worker's value of the marginal product is $\$ \square$ . (Enter your response as an integer.)

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Problem 1453

\begin{tabular}{lll} & Amazon & Netflix \\ \hline Total revenues (sales) & $\$ 280,522$ & $\$ 20,156$ \\ Total assets: & & \\ Beginning of year & 162,648 & 25,974 \\ End of year & 225,248 & 33,976 \end{tabular} a. Which of these assets are used by Netflix, Inc. to generate revenue? a. DVD content library b. Distribution centers c. Streaming content library d. Manufacturing plant
1. $a$ and b
2. a and c
3. a and d
4. b and c b. Compute the asset turnover ratio for each company. Round to two decimal places. Amazon Netflix
Asset turnover ratio $\square$ $\square$ c. Which company generates sales from total assets more efficiently? $\qquad$

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Problem 1454

Part 3 of 8 HW Score: $50 \%, 3$ of 6 points Points: 0 of 1 Save those who imme sample data B. The response variable is the number of students. The explanatory variab C. The response variable is the time to graduate. The explanatory variable is D. The response variable is the use of community college or not. The explar b) Explain why this study can be analyzed using inference of two sample means. A. The samples can be reasonably assumed to be random. B. The sample sizes are not more than $5 \%$ of the population. C. The population is given to be normally distributed. \begin{tabular}{|c|c|c|} \hline & Community College Transfer & No Transfer \\ \hline Sample mean time & 265 & 1164 \\ \hline to graduate, in years & 5.38 & 4.45 \\ \hline Sample standard deviation time to graduate, in years & 1.147 & 1.021 \\ \hline \end{tabular} D. The sample sizes are large (both greater than or equal to 30 ). $\qquad$ E. The samples are independent. Print Done c) Does the evidence suggest that community college transfer students take lo Determine the null and alternative hypotheses. B. $\mathrm{H}_{0}: \mu_{\text {community college }}>\mu_{\text {no transfer }}, \mathrm{H}_{1}: \mu_{\text {community college }}<\mu_{\text {no transfer }}$ C. $\mathrm{H}_{0}: \mu_{\text {community college }}=\mu_{\text {no transfer }}, \mathrm{H}_{1}: \mu_{\text {community college }}>\mu_{\text {no transfer }}$ D. $\mathrm{H}_{0}: \mu_{\text {community college }}=\mu_{\text {no transfer }}, \mathrm{H}_{1}: \mu_{\text {community college }}<\mu_{\text {no transfer }}$

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Problem 1455

A wireless phone store has several smart phone models and sells them at various prices. The table shows some summary statistics for the prices of the smart phones it sells. \begin{tabular}{|c|c|c|c|c|c|c|} \hline Minimum & $Q_{1}$ & Median & $Q_{3}$ & Maximum & Mean & \begin{tabular}{c} Standard \\ Deviation \end{tabular} \\ \hline 150 & 180 & 200 & 240 & 600 & 235 & 180 \\ \hline \end{tabular}
The cheapest smart phone priced at $\$ 150$ goes on sale for $\$ 75$ . Describe how this new price will affect the following values:
Range increases $\square$ IQR $\square$ Select an answer
Median $\square$ Mean Select an answer $\square$ Standard Deviation $\square$ Add Work

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Problem 1456

In their book Introduction to Linear Regression Analysis (3rd edition, Wiley, 2001) Montgomery, Peck, and Vining present measurements on $\mathrm{NbOCl}_{3}$ concentration from a tube-flow reactor experiment. The data, in gram-mole per liter $\times 10^{-3}$ , are as follows. Construct a stem-and-leaf diagram for this data. Compute the sample mean, sample standard deviation, and the sample median. \begin{tabular}{lllllllll} 450 & 450 & 390 & 483 & 506 & 548 & 477 & 1172 & 1219 \\ 1104 & 1106 & 976 & 1176 & 1273 & 1306 & 1446 & 1611 & 1673 \\ 1800 & 2840 & 3250 & 3175 & 3382 & 1965 & 2499 & 2720 & 2642 \end{tabular}
Choose the correct answer.

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Problem 1457

Here are the hottest recorded temperatures (in ${ }^{\circ} \mathrm{F}$ ) for eight cities throughout North America. Complete the grouped frequency distribution for the data. In the distribution, the frequency of a class is the number of temperatures in that class. (Note that we are using a class width of 5.) \begin{tabular}{|cccc|} \hline \multicolumn{4}{|c|}{\begin{tabular}{c} Temperature \\ (in $\left.{ }^{\circ} \mathrm{F}\right)$ \end{tabular}} \\ \hline 113 & 113 & 103 & 110 \\ 108 & 104 & 117 & 116 \\ \hline \end{tabular} \begin{tabular}{|c|} \hline \begin{tabular}{c} Temperature \\ (in ${ }^{\circ} \mathrm{F}$ ) \end{tabular} \\ \hline 103 to 107 \\ Frequency \\ 108 to 112 \\ 113 to 117 \\ \hline \end{tabular}

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Problem 1458

Analyze and compare Amazon.com to Netflix
Amazon.com, Inc. (AMZN) is one of the largest Internet retailers in the world. Netflix, Inc. (NFLX) provides digital streaming and DVD rentals in the United States. Amazon and Netflix compete in streaming and digital services; however, Amazon also sells many other products online. The cash, temporary investments, operating expenses, and depreciation expense from recent financial statements were reported as follows for both companies (in millions):
Amazon Netflix Balance sheet, end of year: Cash $\begin{array}{c} \$ 36,092 \\ 18,929 \end{array}$
Short-term investments Income statement: Operating expenses 265,981 17,552
Depreciation expense $21,789 \quad 9,320$ a. Determine the days' cash on hand for Amazon and Netflix. Assume a 365-day year. If required, round all computations to one decimal place and use in subsequent calculations. Round final answers to one decimal place.
Amazon Netflix Days' Cash on Hand $\square$ days $\square$ days b. With regard to the cash on hand which of these statements is correct?

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Problem 1459

Use the following table comparing motor vehicle deaths (MVD) to answer parts (a) through (d) below. \begin{tabular}{|c|c|c|c|c|} \hline & MVD (2011) & \begin{tabular}{c} MVD per \\ 100,000 \\ people \end{tabular} & \begin{tabular}{c} MVD per \\ 100,000 MV \end{tabular} & \begin{tabular}{c} MVD per \\ $\mathbf{1 0 0}$ million \\ vehicle miles \end{tabular} \\ \hline Country A & 1,607 & 3.76 & 5.8 & 0.60 \\ \hline Country B & 2,313 & 9.73 & 13.94 & 1.20 \\ \hline \end{tabular} (a) The 1,607 is giving the number of MVD in Country A for their entire population, while the 3.76 is a ratio giving 3.76 MVD : 100,000 people. Put this information into a ratio table to find the total population of Country A in 2011 . Solve for the total population. \begin{tabular}{|c|c|} \hline MVD (2011) & People \\ \hline 1,607 & x \\ \hline 3.76 & 100,000 \\ \hline \end{tabular} $\square$ (Round to the nearest integer as needed.)

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Problem 1460

You return from a trip with 27,200 Japanese yen. How much are your yen worth in U.S. dollars? Use the exchange rate shown below. \begin{tabular}{|c|c|c|} \hline Currency & U.S. dollars per Japanese yen & Japanese yen per U.S. dollar \\ \hline Japanese yen & 0.009004 & 111.1 \\ \hline \end{tabular}
The 27,200 Japanese yen are equivalent to about \\square$ (Round to the nearest cent as needed.)

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Problem 1461

\begin{align} \text{Table 1:} \\ \begin{array}{|c|c|} \hline \text{Input} & \text{Output} \\ \hline 3 & 18 \\ 8 & 43 \\ 9 & 48 \\ 2 & - \\ 5 & \\ \hline \end{array} \end{align}
\begin{align} \text{Table 2:} \\ \begin{array}{|c|c|} \hline \text{Input} & \text{Output} \\ \hline 6 & 8 \\ 8 & 9 \\ 2 & 6 \\ 10 & - \\ c & - \\ \hline \end{array} \end{align}
\text{Find the missing numbers and then calculate the rule for each table.}

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Problem 1462

Find the range and standard deviation of the set of data. $8,11,8,11,11,13,15$
The range is $\square$ (Simplify your answer.)

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Problem 1463

Find the range and standard deviation of the set of data. $8,11,8,11,11,13,15=$
The range is 7 . (Simplify your answer.) The standard deviation is $\square$ (Round the final answer to the nearest hundredth as needed. Round all intermediate values to the nearest hundredth as needed.)

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Problem 1464

By examining the past driving records of drivers in a certain city, an insurance company has determined the (empirical) probabilities in the table to the right. Use the (empirical) probabilities to complete parts $(A)$ and $(B)$ below. \begin{tabular}{|c|c|c|c|} \hline \multirow[t]{2}{*}{} & \multicolumn{3}{|l|}{Miles Driven per Year} \\ \hline & $\begin{array}{c} \hline \text { Less } \\ \text { Than } \\ 10,009 \\ \mathrm{M}_{1} \end{array}$ & \begin{tabular}{l} $\begin{array}{c} 10,000- \\ 15,000 \end{array}$ \\ Inclusive, $M_{2}$ \end{tabular} & $\begin{array}{c} \text { More } \\ \text { Than } \\ 15,000 \text {, } \\ \mathrm{M}_{3} \end{array}$ \\ \hline Accident A & 0.10 & 0.20 & 0.20 \\ \hline No Accident $\mathrm{A}^{\prime}$ & 0.05 & 0.20 & 0.25 \\ \hline Totals & 0.15 & 0.40 & 0.45 \\ \hline \end{tabular} (A) Find the probability that a city driver selected at random drives more than 15,000 miles per year or has an accident.
The probability is 0.75 . (Type an integer or a decimal.) (B) Find the probability that a city driver selected at random drives 15,000 or fewer miles per year and has an accident.
The probability is $\square$ (Type an integer or a decimal.)

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Problem 1465

The following table shows the distance from Tessa's house to her favorite locations. \begin{tabular}{lcccc} Location & School & Library & Park & Movie theater \\ \hline Distance from Tessa's house (in kilometers) & 3 & 5 & 4 & 4 \end{tabular}
Find the mean distance. $\square$ km

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Problem 1466

$31,33,36,41,34$
Find the standard deviation of the data set. Round your answer to the nearest hundredth. $\square$ pieces of candy

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Problem 1467

$3,2,4,7$
Find the standard deviation of the data set. Round your answer to the nearest hundredth. $\square$ games

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Problem 1468

Some measurements of the initial rate of a certain reaction are given in the table below. \begin{tabular}{|c|c|c|} \hline $\left[\mathrm{N}_{2}\right]$ & { $\left[\mathrm{H}_{2}\right]$ } & initial rate of reaction \\ \hline 0.579 M & 1.51 M & $10.0 \mathrm{M} / \mathrm{s}$ \\ \hline 2.70 M & 1.51 M & $46.6 \mathrm{M} / \mathrm{s}$ \\ \hline 0.579 M & 0.595 M & $1.55 \mathrm{M} / \mathrm{s}$ \\ \hline \end{tabular}
Use this information to write a rate law for this reaction, and calculate the value of the rate constant $k$ . Round your value for the rate constant to 2 significant digits. Also be sure your answer has the correct unit symbol. $\square$ rate $=k$ $\square$ $\times 10$ $\square$ $\square$ $\square$ - $\square$

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Problem 1469

[-/1.38 Points] DETAILS MY NOTES LARAPCALC10 5.1.
Find the profit function for the given marginal profit and initial condition. \begin{tabular}{|c|c|} \hline Marginal Profit & Initial Condition \\ \hline $\frac{d P}{d x}=-30 x+270$ & $P(5)=\$ 630$ \\ \hline \end{tabular} $P(x)=$ $\square$ Need Help? Read it Watch it Master It

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Problem 1470

\begin{tabular}{|l|l|l|} \hline First Question: & Grade & $\mathbf{3 0}$ \\ \hline \end{tabular}
The manager of a pizza- delivery company wants to advertise how fast they can deliver an order to a customer. From her records, she selects 12 delivery distance, 2, 5, 8, and 15 Km , with three deliveries at each distance. She records, for each delivery, the time (in minutes) it takes to carry the pizza from the company store to the customer. The resulting data are shown in table: \begin{tabular}{|l|c|c|c|c|c|c|c|c|c|c|c|c|} \hline Distance & 2 & 2 & 2 & 5 & 5 & 5 & 10 & 10 & 10 & 15 & 15 & 15 \\ \hline Time & 10.2 & 14.6 & 18.2 & 20.1 & 22.4 & 30.6 & 30.8 & 35.4 & 50.6 & 60.1 & 68.4 & 72.1 \\ \hline \end{tabular} (1) Find the Least Square Regression Line for this relationship? (2) How long do you expect it to take for this company to deliver a pizza to an address that is exactly 8 km from the store? (3) What is the best estimate of the variance? (4) Find the standard deviation of the point estimates of $\hat{\beta}_{0}$ ? (5) Find the standard deviation of the point estimates of $\hat{\beta}_{1}$ ? (6) Test $H_{0}: \beta_{1}=0 \quad$ vs $H_{1}: \beta_{1}>0$ , at $\alpha=0.05$ ? (7) Test $H_{0}: \beta_{0}=0 \quad$ vs $H_{1}: \beta_{0} \neq 0$ , at $\alpha=0.05$ ? (8) Calculate the coefficient of correlation between these two variables? (9)Test $H_{0}: \rho=0 \quad$ vs $H_{1}: \rho \neq 0$ , at $\alpha=0.05$ ?

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Problem 1471

Use the selected values of a linear function $g(x)$ in the table and the equation $h(x)$ shown below to evaluate $(g \circ h)(-3)$ . \begin{tabular}{|c|c|} \hline $x$ & $g(x)$ \\ \hline-3 & -5 \\ \hline-1 & -1 \\ \hline 0 & 1 \\ \hline 4 & 9 \\ \hline \end{tabular} $h(x)=x^{2}-2$

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Problem 1472

Question 1-7
Use the selected values of a linear function $g(x)$ in the table and the equation $h(x)$ shown below to evaluate $(g \circ h)(-3)$ . \begin{tabular}{|c|c|} \hline $x$ & $g(x)$ \\ \hline-3 & -5 \\ \hline-1 & -1 \\ \hline 0 & 1 \\ \hline 4 & 9 \\ \hline \end{tabular} $h(x)=x^{2}-2$ $-22$

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Problem 1473

All Booknarks
A survey stopped men and women at random to ask them where they purchased groceries, at a local grocery store or online. - 14 men said they shopped online. - 43 men were surveyed. - 64 total people said they shopped at a local grocery store. - 98 total people were surveyed.
Fill in the missing values in the table below.
Grocery Options \begin{tabular}{|r|c|c|c|} \hline & Store & Online & Total \\ \hline Women & $\square$ & $\square$ & $\square$ \\ \hline Men & $\square$ & $\square$ & $\square$ \\ \hline & $\square$ & $\square$ & $\square$ \\ \hline \end{tabular}

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Problem 1474

Find a simplified formula for the power function whose values are represented in the table below. \begin{tabular}{|c|c|c|c|c|} \hline $x=$ & 2 & 3 & 4 & 5 \\ \hline $f(x)=$ & 32 & 108 & 256 & 500 \\ \hline \end{tabular} $f(x)=$ $\square$ help (formulas)

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Problem 1475

For any integer $n$ , which of the following are always a) two consecutive even numbers? b) two consecutive odd numbers? \begin{tabular}{|c|c|c|} \hline $n$ and $n+2$ & $n-1$ and $n+1$ & $2 n$ and $2 n+2$ \\ \hline $2 n$ and $2 n+1$ & $2 n-1$ and $2 n+1$ & $2 n+1$ and $2 n+2$ \\ \hline \end{tabular}

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Problem 1476

ion list
Use the 2021 marginal tax rates to compute the tax owed by the following individual. married filing separately with a taxable income of \$122,000 stion 11 (i) Click the icon to view the 2021 marginal tax rates.
2021 Marginal Tax Rates \begin{tabular}{|l|c|c|c|c|} \hline \multicolumn{1}{|c|}{ 2021 Marginal Tax Rates and Standard Deductions } \\ \hline & \begin{tabular}{c} Unmarried, \\ divorced, or \\ legally separated \end{tabular} & \begin{tabular}{c} Married and each \\ partner files a \\ separate tax return \end{tabular} & \begin{tabular}{c} Married and both \\ partners file a \\ single tax return \end{tabular} & \begin{tabular}{c} Unmarried and paying more \\ than half the cost of \\ supporting a child or parent \end{tabular} \\ \hline Tax Rate & \multicolumn{1}{|c|}{ Single } & \begin{tabular}{c} Married Filing \\ Separately \end{tabular} & \begin{tabular}{c} Married \\ Filing Jointly \end{tabular} & \multicolumn{1}{c|}{\begin{tabular}{c} Head of \\ Household \end{tabular}} \\ \hline $10 \%$ & up to $\$ 9950$ & up to $\$ 9950$ & up to $\$ 19,900$ & up to $\$ 14,200$ \\ \hline $12 \%$ & $\$ 9951$ to $\$ 40,525$ & $\$ 9951$ to $\$ 40,525$ & $\$ 19,901$ to $\$ 81,050$ & $\$ 14,201$ to $\$ 54,200$ \\ \hline $22 \%$ & $\$ 40,526$ to $\$ \$ 86,375$ & $\$ 40,526$ to $\$ 86,375$ & $\$ 81,051$ to $\$ 172,750$ & $\$ 54,201$ to $\$ 86,350$ \\ \hline $24 \%$ & $\$ 86,376$ to $\$ 164,925$ & $\$ 86,376$ to $\$ 164,925$ & $\$ 172,751$ to $\$ 329,850$ & $\$ 86,351$ to $\$ 164,900$ \\ \hline $32 \%$ & $\$ 164,926$ to $\$ 209,425$ & $\$ 164,926$ to $\$ 209,425$ & $\$ 329,851$ to $\$ 418,850$ & $\$ 164,901$ to $\$ 209,400$ \\ \hline $35 \%$ & $\$ 209,426$ to $\$ 523,600$ & $\$ 209,426$ to $\$ 314,150$ & $\$ 418,851$ to $\$ 628,300$ & $\$ 209,401$ to $\$ 523,600$ \\ \hline $37 \%$ & more than $\$ 523,600$ & more than $\$ 314,150$ & more than $\$ 628,300$ & more than $\$ 523,600$ \\ \hline \begin{tabular}{l} Standard \\ Deduction \end{tabular} & $\$ 12,550$ & & & \\ \hline \end{tabular}

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Problem 1477

The table gives a set of outcomes and their probabilities. Let $A$ be the event "the outcome is divisible by $2 "$ . Let $B$ be the event "the outcome is prime". Find $P(A \mid B)$ . \begin{tabular}{|c|c|} \hline Outcome & Probability \\ \hline 1 & 0.3 \\ \hline 2 & 0.4 \\ \hline 3 & 0.1 \\ \hline 4 & 0.2 \\ \hline \end{tabular} $\square$

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Problem 1478

The table gives a set of outcomes and their probabilities. Let $A$ be the event "the outcome is divisible by $3^{\prime \prime}$ . Find $P(A)$ . \begin{tabular}{|c|c|} \hline Outcome & Probability \\ \hline 1 & 0.11 \\ \hline 2 & 0.14 \\ \hline 3 & 0.03 \\ \hline 4 & 0.16 \\ \hline 5 & 0.05 \\ \hline 6 & 0.09 \\ \hline 7 & 0.19 \\ \hline 8 & 0.23 \\ \hline \end{tabular} $\square$

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Problem 1479

13. A company that manufactures toothpaste is studying five different package designs. Assuming that one design is just as likely to be selected by a consumer as any other design, what selection probability would you assign to each of the package designs? In an actual experiment, 100 consumers were asked to pick the design they preferred. The following data were obtained. Do the data confirm the belief that one design is just as likely to be selected as another? Explain. \begin{tabular}{cc} Design & \begin{tabular}{c} Number of \\ Times Preferred \end{tabular} \\ 1 & 5 \\ 2 & 15 \\ 3 & 30 \\ 4 & 40 \\ 5 & 10 \end{tabular}

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Problem 1480

For problems 1 to 4, state the most likely hypothesis and compute both a Pearson correlation coefficient and a Spearman correlation coefficient. For problems 1 and 2, perform the computations for all problems both by hand and using SPSS. For problems 3 and 4, use SPSS only. In each case, consider which test, Pearson or Spearman, is the more appropriate choice.
1. An HMO administrator wants to examine the relationship of self-rated health to the number of physician visits made in 1 year. The self-rated health is rated on a scale of 1 to 5 , where $1=$ poor health and $5=$ excellent health; the number of physician visits made in the past year is shown in the table below:
Patient ID Self-Rated Health No. of Physician Visits in the Past Year \begin{tabular}{lll} \hline & the Past Year \\ \hline 1 & 5 & 2 \\ \hline 3 & 4 & 1 \\ \hline 4 & 4 & 2 \\ \hline 5 & 5 & 3 \\ \hline 6 & 4 & 3 \\ \hline 7 & 3 & 4 \\ \hline 8 & 3 & 4 \\ \hline 9 & 4 & 4 \\ \hline 10 & 2 & 5 \\ \hline 11 & 2 & 5 \\ \hline 12 & 3 & 5 \\ \hline \end{tabular}

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Problem 1481

Use the table to determine if $f$ is one-to-one. \begin{tabular}{|r|l|l|l|l|} \hline $x$ & -3 & -6 & -5 & -2 \\ \hline $f(x)$ & -2 & -4 & -2 & -1 \\ \hline \end{tabular}
Is f one-to-one? No Yes

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Problem 1482

An auto transmission manufacturer receives ball bearings from two different suppliers. The ball bearings must have a specified diameter of 16.30 mm with a tolerance of $\pm 0.1 \mathrm{~mm}$ . Recent shipments from the two suppliers had ball bearings with the following diameters. Complete parts (a) through (c). \begin{tabular}{llllllll} Supplier A: & 16.22 & 16.27 & 16.32 & 16.34 & 16.36 & 16.42 & 16.45 \\ Supplier B: & 16.18 & 16.21 & 16.24 & 16.34 & 16.39 & 16.43 & 16.45 \end{tabular} a. Find the mean and standard deviation for each of the two data sets
Find the mean and standard deviation for the diameters of the ball bearings from Supplier $A$ mean $=$ $\square$ $\mathrm{s}=$ $\square$ (Round to the nearest hundredth as needed.)

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Problem 1483

Get an education: A survey asked 32,126 people how much confidence they had in educational institutions. The results were as follows. Round your answers to four decimal places if necessary. \begin{tabular}{lr} \hline \multicolumn{1}{c}{ Response } & Number \\ \hline A great deal & 10,022 \\ Some & 17,813 \\ Hardly any & 4291 \\ \hline Total & 32,126 \end{tabular} Send data to Excel
Part 1 of 3 (a) What is the probability that a sampled person has either a great deal or hardly any confidence in educational institutions?
The probability that a sampled person has either a great deal or hardly any confidence in educational institutions is 0.4455 .
Part: 1 / 3
Part 2 of 3 (b) Assume this is a simple random sample from a population. Use the Empirical Method to estimate the probability that a person has hardly any confidence in educational institutions.
Using the Empirical Method the probability is approximately $\square$ .

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Problem 1484

A car starts moving at time $t=0$ and goes faster and faster. Its velocity is shown in the following table. Estimate how far the car travels during the 12 seconds. \begin{tabular}{c|c|c|c|c|c} \hline $t$ (seconds) & 0 & 3 & 6 & 9 & 12 \\ \hline \begin{tabular}{c} Velocity \\ (ft/sec) \end{tabular} & 0 & 12 & 27 & 48 & 79 \\ \hline \end{tabular}
An underestimate for the distance traveled $=$ $\square$
An overestimate for the distance traveled = $\square$
A better estimate is the average of the above:
Distance traveled $\approx$ $\square$

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Problem 1485

Calculate the net pay for employee 0010. The overtime rate is time-and-a-half. \begin{tabular}{|c|c|c|c|c|c|c|c|c|c|} \hline Empl & Hrs & OT & Rate & Gross & FIT & FICA & Health & Dental & Net \\ \hline $\mathbf{0 0 1 0}$ & 40 & 2 & $\$ 15$ & $\$ 645$ & $\$ 57.00$ & $\$ 43.61$ & $\$ 15$ & $\$ 5$ & \\ \hline $\mathbf{0 0 1 1}$ & 40 & 8 & $\$ 15$ & $\$ 780$ & $\$ 78.00$ & $\$ 59.67$ & $\$ 15$ & $\$ 0$ & \\ \hline $\mathbf{1 1 0 1}$ & - & - & $\$ 48,000$ & $\$ 923$ & $\$ 138.46$ & $\$ 70.62$ & $\$ 200$ & $\$ 12$ & \\ \hline \end{tabular} $\$[?]$ Round to the nearest cent. Enter

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Problem 1486

The following table represent data for an economy: Use the following information for 3 years to calculate the following: \begin{tabular}{|l|c|c|c|} \hline & 2021 & 2022 & 2023 \\ \hline Nominal GDP & $\$ 8,800$ & $\$ 9,500$ & $\$ 11,000$ \\ \hline GDP price index & 92 & 100 & 110 \\ \hline Working age population (16 years of age and above) & 190,000 & 212,000 & 222,000 \\ \hline Employed & 125,000 & 142,000 & 135,000 \\ \hline Unemployed & 12,500 & 12,780 & 11,475 \\ \hline Frictional unemployment rate & $2.5 \%$ & $3 \%$ & $3.3 \%$ \\ \hline Structural unemployment rate & $3.1 \%$ & $2,8 \%$ & $2.7 \%$ \\ \hline Nominal Income & $\$ 2,400$ & $\$ 2,500$ & $\$ 2,560$ \\ \hline Potential Output & 10,000 & 12,000 & 15,000 \\ \hline \end{tabular}

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Problem 1487

Quality control: A population of 598 semiconductor wafers contains wafers from three lots. The wafers are categorized by lot and by whether they conform to a thickness specification, with the results shown in the following table. A wafer is chosen at random from the population. Write your answer as a fraction or a decimal, rounded to four decimal places. \begin{tabular}{ccc} \hline Lot & Conforming & Nonconforming \\ \hline A & 92 & 11 \\ B & 160 & 32 \\ C & 257 & 46 \\ \hline \end{tabular} Send data to Excel (a) What is the probability that the wafer is from Lot A? (b) What is the probability that the wafer is conforming? (c) What is the probability that the wafer is from Lot $A$ and Is conforming? (d) Given that the wafer is from Lot $A$ , what is the probability that it is conforming? (e) Given that the wafer is conforming, what is the probability that it is from Lot A? (f) Let $E_{1}$ be the event that the wafer comes from Lot $A$ , and let $E_{2}$ be the event that the wafer is conforming. Are $E_{1}$ and $E_{2}$ independent?
Part 1 of 6
The probability that the wafer is from Lot A is 0.1722 .
Part 2 of 6
The probability that the wafer is conforming is 0.8502 .
Part 3 of 6
The probability that the wafer is from Lot $A$ and is conforming is 0.1538 .
Part 4 of 6
The probability that the wafer is conforming given that it is from Lot A is 0.8932 .
Part: $4 / 6$
Part 5 of 6
The probability that the wafer is from Lot $A$ given that it is conforming is $\square$

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Problem 1488

A scientist keeps track of bacteria cells. She starts with 1 cell. After one hour, there are 2 cells. The number of cells continues to double in each of the following hours.
Complete the table to show the total number of cells after 4 hours. \begin{tabular}{|c|c|c|} \hline Hour & Expression & Number of Cells \\ \hline 1 & 2 & 2 \\ \hline 2 & $2 \cdot 2$ & 4 \\ \hline 3 & $2 \cdot 2 \cdot 2$ & 8 \\ \hline 4 & $2 \cdot 2 \cdot 2 \cdot 2$ & \\ \hline \end{tabular}
Hour 1
Hour 2
Hour 3

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Problem 1489

iReody Numerical Expressions with Exponents - Instruction - Level F
A scientist keeps track of bacteria cells. She starts with 1 cell. After one hour, there are 2 cells. The number of cells continues to double in each of the following hours. \begin{tabular}{|c|c|c|} \hline Hour & Expression & Number of Cells \\ \hline 1 & 2 & 2 \\ \hline 2 & $2 \cdot 2$ & 4 \\ \hline 3 & $2 \cdot 2 \cdot 2$ & 8 \\ \hline 4 & $2 \cdot 2 \cdot 2 \cdot 2$ & 16 \\ \hline \end{tabular}
Hour 1
Hour 2
Hour 3
Hour 4
Complete the statements. The number of cells increases by a factor of 2
After 4 hours, the number 2 is used as a factor $\square$ times. \begin{tabular}{|c|c|c|c|} \hline & \multicolumn{2}{|c|}{ $\cdots$ } & $x$ \\ \hline 7 & 8 & 9 & $\mathbf{x}$ \\ \hline 4 & 5 & 6 & - \\ \hline 1 & 2 & 3 & - \\ \hline 0 & & $(-)$ & \\ \hline \end{tabular}

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Problem 1490

i-Ready Numerical Expressions with Exponents - Instruction - Level F
A scientist keeps track of bacteria cells. She starts with 1 cell. After one hour, there are 2 cells. The number of cells continues to double in each of the following hours.
Complete the table to show the total number of cells after 5 hours. \begin{tabular}{|c|c|c|c|} \hline Hour & Expression & Power & Number of Cells \\ \hline 1 & 2 & $2^{1}$ & 2 \\ \hline 2 & $2 \cdot 2$ & $2^{2}$ & 4 \\ \hline 3 & $2 \cdot 2 \cdot 2$ & $2^{3}$ & 8 \\ \hline 4 & $2 \cdot 2 \cdot 2 \cdot 2$ & $2^{4}$ & 16 \\ \hline 5 & $2 \cdot 2 \cdot 2 \cdot 2 \cdot 2-$ & $2^{5}$ & \\ \hline \end{tabular}

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Problem 1491

A survey of 10 adults employed full-time was taken. Here are their reported numbers of hours worked per week. $50,53,55,57,53,48,57,40,57,53$
Send data to calculator \begin{tabular}{|l|l|} \hline (a) What is the mean of this data set? If your answer is not an \\ integer, round your answer to one decimal place. \end{tabular} $\square$

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Problem 1492

VALUATE
Independent Practice \begin{tabular}{l|l|} \hline earning Goal & Lesson Reflection (circle one) \\ \hline \begin{tabular}{l} I can determine if a relation is a function. I can \\ represent a function using a graph and table. \end{tabular} & Starting... Getting There... Got it! \\ \hline \end{tabular} Complete the previous problems, check your solutions, then complete the Lesson Checkpoint below. Complete the Lesson Reflection above by circling your current understanding of the Learning Goal(s).
1. Determine whether each table represents a function. Select Function or Not a Function for each.
Table Function Not a Function \begin{tabular}{|c|c|c|c|c|} \hline $x$ & 2 & 3 & 4 & 5 \\ \hline $y$ & -3 & -3 & -3 & -4 \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|c|} \hline $x$ & -1 & -1 & -1 & -1 \\ \hline $y$ & 2 & 3 & 4 & 5 \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|c|} \hline $x$ & -6 & -4 & -3 & -2 \\ \hline $y$ & -11 & -11 & 10 & 15 \\ \hline \end{tabular} \begin{tabular}{|c|c|c|c|c|} \hline $x$ & -6 & 0 & 1 & -6 \\ \hline $y$ & 5 & 2 & 12 & 9 \\ \hline \end{tabular}
2. Which of the following could be a function? Select two that apply

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Problem 1493

(a) Kenworth Electrical specialises in wiring new houses.
The monthly wages of all Kenworth Electrical employees are summarised in the frequency table below. \begin{tabular}{|c|c|} \hline Monthly wage, $£ x$ & Frequency \\ \hline $1800 \leqslant x<2000$ & 64 \\ \hline $2000 \leqslant x<2100$ & 50 \\ \hline $2100 \leqslant x<2400$ & 2 \\ \hline $2400 \leqslant x<5800$ & 0 \\ \hline $5800 \leqslant x<7800$ & 4 \\ \hline \end{tabular} i) Estimate the mean ii) Which group contains the median iii) Write down the modal group

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Problem 1494

Part 1 of 2
The table shows the maximum recommended viewing dstances $y$ , in feet, for an HDNV with screen size $x$ , in inches. What trend line models the data shown in the table? What doees the slope of the trend line represenc? \begin{tabular}{|c|c|c|c|c|c|} \hline x & 40 & 43 & 50 & 55 & 60 \\ \hline $y$ & 8.3 & 9 & 10.4 & 11.5 & 125 \\ \hline \end{tabular}
Which of the following is an equation of a trend line that models the data? A. $y=-0.2 x-0.5$ B. $y=0.2 x$ C. $y=0.5$ D. $y=0.2 x-0.5$ E. $y=-0.5$ F. $y=-0.2 x$ G. $y=-0.2 x+0.5$ H. $y=0.2 x+0.5$ Video Textbook Get more help - Clear all Check answer Review Progress

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Problem 1495

a) What number is missing from the frequency column for history? b) Draw the tally to show the number of people who chose English.
Favourite subject \begin{tabular}{|c|c|c|} \hline Subject & Tally & Frequency \\ \hline History & H H H III & \\ \hline Geography & H ||||| & 9 \\ \hline English & & 12 \\ \hline \end{tabular}

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Problem 1496

mples 1-3 Determine whether each relation is a function. Explain.
1. Domain 2. \begin{tabular}{|c|c|} \hline Domain & Range \\ \hline 2 & 6 \\ \hline 5 & 7 \\ \hline 6 & 9 \\ \hline 6 & 10 \\ \hline \end{tabular}

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Problem 1497

Based only on the analysis result here, what is the true nature of the relationship between English Score and Math Score?
Correlations \begin{tabular}{llr|r} & & EnglishScore & MathScore \\ \hline \multirow{3}{}{ EnglishScore } & Pearson Correlation & 1 & $.294^{}$ \\ \cline { 2 - 4 } & Sig. (2-tailed) & & .029 \\ \cline { 2 - 4 } MathScore & N & 55 & 55 \\ \cline { 2 - 4 } & Pearson Correlation & $.294^{}$ & 1 \\ \hline & Sig. (2-tailed) & .029 & \\ \cline { 2 - 4 } & N & 55 & 55 \\ \hline \end{tabular} . Correlation is significant at the 0.05 level (2-tailed). English ability significantly enhances math test performance. A generally high level of cognitive function enhances both english test scores and the math test scores. It's not possible to know the exact nature of the relationship based when one is only given the results of an analysis. Math ability significantly enhances English test performance.

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Problem 1498

```latex The accompanying table lists distances (mm) between pupils of randomly selected U.S. Army personnel collected as part of a large reputable study. Results from two-way analysis of variance. Use the displayed results and use a 0.05 significance level. What do you conclude?
Click the icon to view the data and two-way analysis of variance results.
D. Fail to reject $\mathrm{H}_{0}$ . There is insufficient evidence to support the alternative hypothesis. There does not appear to be an interaction between gender and handedness.
If appropriate, test for an effect from the row factor. Choose the correct answer below.
A. $\mathrm{H}_{0}$ : Left-handed people and right-handed people have the same population mean distance between pupils. $\mathrm{H}_{1}$ : Left-handed people and right-handed people have different population mean distances between pupils.
B. $\mathrm{H}_{0}$ : Men and women have different population mean distances between pupils. $H_{1}$ : Men and women have the same population mean distance between pupils.
C. $\mathrm{H}_{0}$ : Left-handed people and right-handed people have different population mean distances between pupils. $\mathrm{H}_{1}$ : Left-handed people and right-handed people have the same population mean distance between pupils.
D. $\mathrm{H}_{0}$ : Men and women have the same population mean distance between pupils. $\mathrm{H}_{1}$ : Men and women have different population mean distances between pupils.
E. This test is not appropriate due to the results of the test for interaction between the two factors.
The user took a picture with their phone and the text was extracted above. The user then had a dialogue with an AI Assistant to help clarify the instructions.
Dialogue Transcript:
Hello! It looks like you have a two-way analysis of variance (ANOVA) problem here involving gender and handedness as factors. However, I need a bit more information to assist you properly. Could you please provide the specific results from the two-way ANOVA, such as the p-values for the main effects and interactions? Additionally, let me know if there is anything else specific you'd like help with regarding this problem.
Feel free to type out any important details that might help me understand the context better!
Extracted text from attached image:
Data and Two-Way ANOVA Results
\begin{tabular}{l|c|c} \hline & \text{Right-Handed} & \text{Left-Handed} \\ \hline \text{Female} & 6663596056 & 7162616962 \\ \hline \text{Male} & 6764666971 & 6767656864 \\ \hline \end{tabular}
\begin{tabular}{|lllllll|} \hline \text{Source:} & \text{DF:} & \text{SS:} & \text{MS:} & \text{Test Stat, F:} & \text{Critical F:} & \text{P-Value:} \\ \text{Interaction:} & 1 & 36.45 & 36.45 & 3.15584 & 4.49401 & 0.09467 \\ \text{Row Variable:} & 1 & 76.05 & 76.05 & 6.58442 & 4.49401 & 0.02072 \\ \text{Column Variable:} & 1 & 11.25 & 11.25 & 0.97403 & 4.49401 & 0.33837 \\ \hline \end{tabular} ```

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Problem 1499

\begin{tabular}{|l|l|l|} \hline & Adults & Children \\ \hline Dayl & 310 & 720 \\ \hline Day2 & 720 & 130 \\ \hline Day3 & 120 & 170 \\ \hline Day4 & 210 & 211 \\ \hline \end{tabular}
The table above shows the number of tickets sc during four days as shown above, adult ticket costs $12 \$$ , Child ticket cost 7.5 . What is the tot amount during the four days?

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Problem 1500

Are the snow conditions a factor in the number of visitors at a ski resort? The table below shows data that was collected. \begin{tabular}{|c|c|c|} \hline Hard Packed & Machine Made & Powder \\ \hline 1368 & 1804 & 1840 \\ \hline 1347 & 1552 & 1945 \\ \hline 2099 & 1676 & 1834 \\ \hline 2010 & 1945 & 1924 \\ \hline 2108 & 1810 & 2132 \\ \hline 1884 & 1571 & 1884 \\ \hline 1693 & 1534 & 1904 \\ \hline 1243 & 1006 & 1828 \\ \hline 2308 & & 2828 \\ \hline \end{tabular}
Assume that all distributions are normal, the three population standard deviations are all the same, and the data was collected independently and randomly. Use a level of significance of $\alpha=0.05$ . $H_{0}: \mu_{1}=\mu_{2}=\mu_{3}$ $H_{1}$ : At least two of the means differ from each other.
1. For this study, we should use Select an answer $\square$
2. The test-statistic for this data = $\square$ (Please show your answer to 3 decimal places.)
3. The $p$ -value for this sample $=$ $\square$ (Please show your answer to 4 decimal places.)
4. The $p$ -value is Select an answer $\square$ $\alpha$
5. Base on this, we should
Select an answer sion is that...
6. As such, the final conclusion is that... (0) hypothesis There is sufficient evidence to support the claim that snow conditions is a factor in the number of visitors at a ski resort. There is insufficient evidence to support the claim that snow conditions is a factor in the number of visitors at a ski resort.

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Data

Problem 1401

Given a stem-and-leaf plot, find the mean, median, standard deviation, and range. Round to three decimal places.

Problem 1402

Find the min, max, range, mean (to 2 decimals), and standard deviation of TV hours for 24 kids: 77, 38, 35, 54, 30, 32, 85, 12, 70, 91, 25, 71, 95, 90, 99, 11, 66, 74, 90, 78, 34, 77, 39, 62.

Problem 1403

Calculate the sample standard deviation for the aptitude scores with frequencies: 0 (2), 1 (6), 2 (0), 3 (0), 4 (3), 5 (4).

Problem 1404

Calculate the sample standard deviation of the following musical aptitude scores: 0 (3), 1 (3), 2 (1), 3 (8), 4 (3), 5 (5).

Problem 1405

Is the set {(−4,19),(−3,12),(0,3),(3,12),(5,28)}\{(-4,19),(-3,12),(0,3),(3,12),(5,28)\}{(−4,19),(−3,12),(0,3),(3,12),(5,28)} a function? If yes, find the domain and range.

Problem 1406

Find the five-number summary (min, Q1, median, Q3, max) for the dataset: 53, 18, 54, 65, 48, 70, 38, 63, 28, 41, 45, 33, 52, 20, 43, 23, 30, 79, 42, 89.

Problem 1407

Find the five-number summary (min, Q1, median, Q3, max) for the data set: 25, 53, 81, 60, 54, 46, 13, 52, 43, 39, 36, 10, 41, 37, 77, 57, 56.

Problem 1408

Find the five-number summary and IQR for the data: 25, 53, 81, 60, 54, 46, 13, 52, 43, 39, 36, 10, 41, 37, 77, 57, 56. Identify outlier bounds and any outliers.

Problem 1409

Find the five number summary, range, and interquartile range from the given stem & leaf plot data.

Problem 1410

Find the five-number summary for the data: 25, 53, 81, 60, 54, 46, 13, 52, 43, 39, 36, 10, 41, 37, 77, 57, 56. Determine IQR, lower & upper outlier bounds, and any outliers.

Problem 1411

Find the five-number summary for the data: 10, 12, 21, 35, 36, 41, 42, 43, 44, 46, 47, 49, 52, 58, 59, 60, 83, 88. Calculate IQR, outlier bounds, and any outliers.

Problem 1412

Is the frequency distribution normal based on the criteria? Choose A, B, or C based on the given temperature ranges and frequencies.

Problem 1413

Estimate yyy for x=1x=1x=1 and x=6x=6x=6 using the model y=0.88x+18.69y=0.88x+18.69y=0.88x+18.69. What are the values?

Problem 1414

Given the function f(x)f(x)f(x) from a table, verify if: a. h(3)=−43h(3)=\frac{-4}{3}h(3)=3−4​, c. f(−1)=3f(-1)=3f(−1)=3, e. g(2)=2g(2)=2g(2)=2 or -3.

Problem 1415

Calculate the correlation coefficient rrr and the regression line for the given sea level pressure and wind speed data. Then predict wind speed for 977 millibars. Round appropriately.

Problem 1416

Determine the correlation coefficient rrr, regression line, and predict weight for a 124-inch alligator. Is it valid for 20 inches?

Problem 1417

Does the point (10.5,42)(10.5,42)(10.5,42) make sense for bracelet lengths and beads? Explain based on the given data.

Problem 1418

Which set of numbers can be the lengths of a triangle's sides? (A) 2,2,42,2,42,2,4 (B) 6,12,56,12,56,12,5 (C) 7,4,37,4,37,4,3 (D) 9,8,159,8,159,8,15

Problem 1419

Which teacher's quiz table shows a proportional relationship between the number of questions and point value?

Problem 1420

Subtract 1,892 from 3,300. What is the result?

Problem 1421

Graph the cost of pumpkins (0,4,8,12,160, 4, 8, 12, 160,4,8,12,16 for 0,1,2,3,40, 1, 2, 3, 40,1,2,3,4 pumpkins) and explain if it's proportional.

Problem 1422

Graph the relationship between Celsius and Fahrenheit temperatures. Is Fahrenheit proportional to Celsius? Explain.

Problem 1423

Calculate total sales minus refunds for Sara's Olde Curiosity Shop, which has a 3% fee. Sales: \$70.63, \$108.54, \$186.18, \$131.93, \$92.09, \$180.38, \$165.82, \$187.43; Refunds: \$26.32, \$12.87, \$26.12.

Problem 1424

Find the mean, median, mode, and standard deviation of these salaries: 98000, 115000, 75000, 88000, 65000, 107000, 72000, 71000, 88000, 57000, 88000, 73000, 97000, 85000, 87000, 73000, 93000, 88000, 71000, 65000, 87000, 83000, 75000, 44000, 81000, 76000, 81000, 89000.

Problem 1425

Calculate the mean, median, mode, and standard deviation of the given salaries. Is \$115,000 an outlier?

Problem 1426

Find the mean (to two decimal places) of these ages: 18, 18, 18, 18, 18, 19, 19, 19, 20, 22, 22, 23, 23, 23, 24, 25, 26, 26, 29, 33, 64.

Problem 1427

Find the mean price paid by the elderly for antidepressants from the list: 10, 20, 42, 34, 31, 17, 21, 53.33, 19, 55, 23, 57, 34, 55, 61, 44, 41, 39, 38, 47, 30, 55, 67. Round to a whole number.

Problem 1428

Calculate the mean, median, and mode of the prices: 10, 20, 42, 34, 31, 17, 21, 53, 33, 19, 55, 23, 57, 34, 55, 61, 44, 41, 39, 38, 47, 30, 55, 67.

Problem 1429

Calculate the mean and median of these prices: 10, 20, 42, 34, 31, 17, 21, 53, 33, 19, 55, 23, 57, 34, 55, 61, 44, 41, 39, 38, 47, 30, 55, 67.

Problem 1430

Redraw the reactance diagram for a 3-phase system with given equipment ratings. Find per-unit reactances and voltages at buses 1 and 2.

Problem 1431

Calculate the energy absorbed by 100g of water with specific heat 4.18 J/g°C, initial temp 21.2°C, final temp 46.2°C.

Problem 1432

Heights of friends: 62, 66, 65, 66, 67. Find the domain, range, and determine if it's a function.

Problem 1433

Problem 1434

Find an equation for the average speed of an airplane in miles (M)(M)(M) per hour (h)(h)(h) based on its travel data.

Problem 1435

Estimate the US federal tax revenue per taxpayer in 2018 given 122,176,626 taxpayers and \$3,307,673,720,131 revenue.

Problem 1436

Complete the table for θ=225∘\theta = 225^{\circ}θ=225∘: find cos⁡θ\cos \thetacosθ and cot⁡θ\cot \thetacotθ given sin⁡θ=−22\sin \theta = -\frac{\sqrt{2}}{2}sinθ=−22​​.

Problem 1437

Problem 1438

Problem 1439

Problem 1440

Problem 1441

11. Below are the ages of contestants on a game show. Find the standard deviation of the data. 292021193528333126323522\begin{array}{llllllllllll} 29 & 20 & 21 & 19 & 35 & 28 & 33 & 31 & 26 & 32 & 35 & 22 \end{array}29​20​21​19​35​28​33​31​26​32​35​22​

Problem 1442

Problem 1443

Is the set $\{(-4,19),(-3,12),(0,3),(3,12),(5,28)\}$ a function? If yes, find the domain and range.

Estimate $y$ for $x=1$ and $x=6$ using the model $y=0.88x+18.69$ . What are the values?

Given the function $f(x)$ from a table, verify if: a. $h(3)=\frac{-4}{3}$ , c. $f(-1)=3$ , e. $g(2)=2$ or -3.

Calculate the correlation coefficient $r$ and the regression line for the given sea level pressure and wind speed data. Then predict wind speed for 977 millibars. Round appropriately.

Determine the correlation coefficient $r$ , regression line, and predict weight for a 124-inch alligator. Is it valid for 20 inches?

Does the point $(10.5,42)$ make sense for bracelet lengths and beads? Explain based on the given data.

Which set of numbers can be the lengths of a triangle's sides? (A) $2,2,4$ (B) $6,12,5$ (C) $7,4,3$ (D) $9,8,15$

Graph the cost of pumpkins ( $0, 4, 8, 12, 16$ for $0, 1, 2, 3, 4$ pumpkins) and explain if it's proportional.

Find an equation for the average speed of an airplane in miles $(M)$ per hour $(h)$ based on its travel data.

Complete the table for $\theta = 225^{\circ}$ : find $\cos \theta$ and $\cot \theta$ given $\sin \theta = -\frac{\sqrt{2}}{2}$ .

11. Below are the ages of contestants on a game show. Find the standard deviation of the data. $\begin{array}{llllllllllll} 29 & 20 & 21 & 19 & 35 & 28 & 33 & 31 & 26 & 32 & 35 & 22 \end{array}$

Complete the table shown to the right for the half-life of a certain radioactive substance. \begin{tabular}{|l|l|} \hline Half-Life & Decay Rate, $\mathbf{k}$ \\ \hline 3851 years & \\ \hline \end{tabular} $k=$ $\square$ (Round to six decimal places as needed.)

Find the range and standard deviation of the set of data. $8,11,8,11,11,13,15$
The range is $\square$ (Simplify your answer.)

The following table shows the distance from Tessa's house to her favorite locations. \begin{tabular}{lcccc} Location & School & Library & Park & Movie theater \\ \hline Distance from Tessa's house (in kilometers) & 3 & 5 & 4 & 4 \end{tabular}
Find the mean distance. $\square$ km

$31,33,36,41,34$
Find the standard deviation of the data set. Round your answer to the nearest hundredth. $\square$ pieces of candy

$3,2,4,7$
Find the standard deviation of the data set. Round your answer to the nearest hundredth. $\square$ games

Find a simplified formula for the power function whose values are represented in the table below. \begin{tabular}{|c|c|c|c|c|} \hline $x=$ & 2 & 3 & 4 & 5 \\ \hline $f(x)=$ & 32 & 108 & 256 & 500 \\ \hline \end{tabular} $f(x)=$ $\square$ help (formulas)