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...

Suppose a university advertises that its average class size is

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

classes was​ selected, and the average class size was found to be

students. Assume that the standard deviation for class size at the college is

students. Using

complete parts a and b below.

Extracted text: 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, and the 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