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Difference-average salaries for school and college graduates

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Reference no: EM131727586

Question: For each of the following research questions, would it make more sense to collect independent samples or paired data? Explain.

a. In the United States, on average, what is the age difference between husbands and wives?

b. What is the difference in average ages at which teachers and plumbers retire?

c. What is the difference in average salaries for high school graduates and college graduates?

Reference no: EM131727586

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