Question: The paper referenced in the previous exercise also reported that for a representative sample of 68 second-year students at the university, the sample mean procrastination

The paper referenced in the previous exercise also reported that for a representative sample of 68 second-year students at the university, the sample mean procrastination score was 41.0 and the sample standard deviation was 6.82.

a. Construct a 95% confidence interval estimate of m, the population mean procrastination scale for second-year students at this college.

b. How does the confidence interval for the population mean score for second-year students compare to the confidence interval for first-year students calculated in the previous exercise? What does this tell you about the difference between firstyear and second-year students in terms of mean procrastination score?

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