Question Details

Suppose a university advertises that its average class size is 37 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 of43classes wasselected, and the average class size was found to be38.2students. Assume that the standard deviation for class size at the college is7students. Using?=0.01. The z-test statistic is _____ ? (Round to two decimal places as needed.) The critical z-score(s) is(are) _____ ? (Round to two decimal places as needed.) b) The p-value is ______? (Round to three decimal places as needed.)