3. In order to determine how many hours per week freshmen college students watch television, a random sample of 256 students was selected. It was determined that the students in the sample spent an average of 14 hours with a standard deviation of 3.2 hours watching TV per week. 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 62 students was selected that resulted in the same mean and standard deviation. Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. Please show all workings step by step.
Added by Edward G.
Step 1
This can be done using a T-distribution table or a calculator, and the value is approximately 1.97. Show more…
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