(16.19) A class survey in a large class for first-year collegestudents asked, \"About how many hours do you study in a typicalweek?\". The mean response of the 427 students was x¯¯¯ = 17 hours.Suppose that we know that the study time follows a Normaldistribution with standard deviation 8 hours in the population ofall first-year students at this university. What is the 99%confidence interval (±0.001) for the population mean? Confidenceinterval is from to hours.
