1. Two undergraduate students at Cal Poly took a random sample of the required textbooks for 40 different classes. They recorded the field of study (Humanities, Arts, Natural Science, and Social Science) and the total cost for the books in that course. Test at the 0.05 significance level if the field of study (field) affects the average cost of the required books for a course (cost).
a. State the populations and parameters being studied in this test.
c. List the null and alternative hypotheses.
a) Population: fi eld of study and the total cost for the books in course for ALL classes C) HO:... View the full answer