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Math  /  Data & Statistics

QuestionQuestion 16, 8.2.1 Pait 1 of 3 HW Scores 43.33\%, 12.13 of 28 points Points: 0 of 1 Save
Use the results from a survey of a simple random sample of 1229 adults. Among the 1229 respondents, 71%71 \% rated themselves as above average drivers. We want to test the claim that 1320\frac{13}{20} of adults rate themselves as above average drivers. Complete parts (a) through (c). a. Identify the actual number of respondents who rated themselves as above average drivers. □\square (Round to the nearest whole number as needed.) nore help - Clear all Check answer

Studdy Solution

STEP 1

1. The total number of respondents is 1229.
2. 71% of respondents rated themselves as above average drivers.
3. We need to calculate the actual number of respondents who rated themselves as above average drivers by using the given percentage.

STEP 2

1. Convert the percentage of respondents to a decimal.
2. Calculate the actual number of respondents using the decimal form of the percentage.
3. Round the result to the nearest whole number.

STEP 3

Convert the percentage to a decimal:
71%=0.71 71\% = 0.71

STEP 4

Calculate the actual number of respondents:
0.71×1229=872.59 0.71 \times 1229 = 872.59

STEP 5

Round the result to the nearest whole number:
Rounded result=873 \text{Rounded result} = 873
The actual number of respondents who rated themselves as above average drivers is:
873 \boxed{873}

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