Question: Students at PCC often have to work so that they can afford tuition, books and supplies and the occasional beer – root beer that is. Professor Thomas T. Thomas (his parents were not very creative) has been studying if the grade point average and the number of hours worked per week are in reverse proportion. He surveyed his class in an undergraduate beginning statistics class and found out the following information.

By using the correct test, first write the null and research hypotheses, next analyze this information and indicate if Professor Thomas is correct or not. Show your work, and of course tell me the answer.

Oh, also tell me, for 5 extra credit points the estimated GPA for a student who works 20 hours per week. If you don’t know how to this, then go back to you book, it tells you how to do it using POLYSTAT.