Discussion:
Q: Suppose that a small college claims that they graduate at least 500 students every semester. A random sample of 31 semesters yields a sample mean of with a sample standard deviation of s=65.
Given that the pair of hypotheses that correspond to the claim are:
H0: μ 500
H1: μ < 500
Find the critical value for the hypothesis test. Assume that the significance level is a=0.02.