Questionter 9 Homework
Question 5, 9.2.1
Determine whether the samples are independent or dependent.
A data set includes the morning and evening temperature for the last 120 days.
Choose the correct answer below.
A. The samples are dependent because there is not a natural pairing between the two samples,
B. The samples are independent because there is not a natural pairing between the two samples.
C. The samples are independent because there is a natural pairing between the two samples.
D. The samples are dependent because there is a natural pairing between the two samples.
Studdy Solution
STEP 1
1. We have two samples: morning temperatures and evening temperatures for the last 120 days.
2. We need to determine if there is a natural pairing between the two samples.
STEP 2
1. Define what constitutes independent and dependent samples.
2. Analyze the relationship between the samples.
3. Choose the correct answer based on the analysis.
STEP 3
Define independent samples: Independent samples are those where the data points in one sample do not correspond to data points in the other sample.
Define dependent samples: Dependent samples are those where there is a natural pairing between the data points in one sample and the data points in the other sample.
STEP 4
Analyze the relationship: Each morning temperature corresponds to an evening temperature on the same day. Thus, there is a natural pairing between the morning and evening temperatures for each day.
STEP 5
Based on the analysis, the samples are dependent because there is a natural pairing between the morning and evening temperatures for each day.
The correct answer is:
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