In each of the following scenarios, determine if the data are paired or unpaired

Question

In each of the following scenarios, determine if the data are paired or unpaired.

a) Assessing gender-related salary gap by comparing salaries of randomly sampled men and women.

c) A school board would like to determine whether there is a difference in average SAT scores for students at one high school versus another high school in the district. To check, they take a simple random sample of 100 students from each high school.

d) Comparing artery thickness at the beginning of a study and after two years of taking Vitamin E for the same group of patients.

a) Assessing gender-related salary gap by comparing salaries of randomly sampled men and women.

b) We randomly sample 50 items from Target stores and note the price for each. Then we visit Walmart and collect the price for each of those same 50 items.

c) A school board would like to determine whether there is a difference in average SAT scores for students at one high school versus another high school in the district. To check, they take a simple random sample of 100 students from each high school.

d) Comparing artery thickness at the beginning of a study and after two years of taking Vitamin E for the same group of patients.

Explanation / Answer

a) Assessing gender-related salary gap by comparing salaries of randomly sampled men and women: Unpaired

b) Paired

c) Unpaired

d) Paired

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