3. A nationally distributed college newspaper conducts a survey among students nationwide every year. This year, responses from a simple random sample of college students to the question "About how many CDs do you own? " resulted in a sample mean of 72.8. Answer each of the following questions with yes, no, or can't tell. (6) a. Does the population mean lie in the 95% confidence interval? b. Does the sample mean lie in the 95% confidence interval? c. If we were to use a 95% confidence level, would the confidence interval from the same data produce an interval wider than the 98% confidence interval