Suppose a university advertises that its average class size is35or less. A student organization is concerned that budget cuts have led to increased class sizes and would like to test this claim. A random sample of43classes was selected, and the average class size was found to be37.7students. Assume that the standard deviation for class size at the college is7students. Usingα=0.05,complete parts a and b below. Suppose a university advertises that its average class size is 35 or less. A student organization is concerned that budget cuts have led to increased class sizes and would like to test this claim. A random sample of 43 classes was selected, andthe average class size was found to be 37.7 students. Assume that the standard deviation for class size at the college is 7 students. Using x = 0.05, complete parts a and b below......a. Does the student organization have enough evidence to refute the college's claim?Determine the null and alternative hypotheses.Ho: H

Given : Claim : Suppose a university advertises that its average class size is 35 or less. Solution : Claim : Suppose a university advertises that its average class size is 35 or less. Let μ be the population average class size. Population mean = μ = 35 Hypothesis test : The null and alternative hypothesis is Ho : μ ≤ 35 H1 : μ > 35