You may need to use the appropriate appendix table or technology to answer this question. 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 15 hours with a standard deviation of 3.1 hours watching TV per week. (Round your answers to three decimal places.) (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.

Don't hand writing solution.