One hundred students take a multiple choice test. We wish to test the hypothesis that the students guessed at random on question 36.The frequencies of responses for that question were as follows:

(a) State H0 in symbolic form.
(b) Compute X2 and test H0 at a = .01.
(c) Draw final conclusions.
(d) Calculate ˆ for this result and state whether this is a small, medium, or large effect size. 8.