PLEASE GIVE STEP BY STEP MATHEMATICAL EXPLANATION OF THIS PROBLEM
It is reported that the average college student sleeps 5.2 hours per night during the semester. A
local college is concerned that the average number of hours may be lower than that for their
students. They conduct a study of 75 students and find a mean sleep time of 4.9 hours with a
sample standard deviation of 1.3 hours. Conduct a hypothesis test at a .05 significance level to
determine whether the mean number of hours of sleep for college students at this college is
significantly lower.