ANSWER ALL 4 QUESTIONS

To see whether students who finish an quiz first get the same grades as those who finish later, a professor kept track of the order in which papers were handed in. Of the first 25 papers, 10 students received a "C" or better, compared with 8 of the last 24 papers handed in.

a)Use two different hypothesis tests to determine whether the grade is independent of the order handed in.

b)Use a 10% level of significance for both tests.

c)Explain the relationship between the two tests.

d)Which test do you prefer and why?