Question: 3. In order to determine how many hours per week freshmen college students watch television, a random sample of 25 students was selected. It was

3. In order to determine how many hours per week freshmen college students watch television, a random sample of 25 students was selected. It was determined that the students in the sample spent an average of 19.5 hours with a sample standard deviation of 3.9 hours watching TV per week. Please answer the following questions:

(a) Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week.

(b) Assume that a sample of 36 students was selected (with the same mean and the sample standard deviation). Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week.

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