c statics question A class survey in a large class for first year college students asked, "about how many minutes do you study on a typical weeknight?...

basic statics question A class survey in a large class for first year college students asked, "about how many minutes do you study on a typical weeknight?" the mean response of the 463 students was X = 118 minutes. suppose that we know that the study time follows a normal distribution with standard deviation = 65 minutes of the population of all first year students at this university... question continue is attached.