In an Early Study,researchers at Ivy University Found That 33

Short Answer

In an early study,researchers at Ivy University found that 33 percent of the freshmen had received at least one A in their first semester.Administrators are concerned that grade inflation has caused this percentage to increase.In a more recent study,of a random sample of 500 freshmen,185 had at least one A in their first semester.Calculate the appropriate test statistic to test the hypotheses.