(a) What percents of each grade did students in the professors section earn? Inwhat ways

Chapter 0, Problem 23.17

(choose chapter or problem)

(a) What percents of each grade did students in the professors section earn? Inwhat ways does this distribution of grades differ from the TA distribution?(b) Because the TA distribution is based on hundreds of students, we are willingto regard it as a fixed probability distribution. If the professors grading follows thisdistribution, what are the expected counts of each grade in his section?(c) Does the chi-square test for goodness of fit give good evidence that theprofessors grades follow a different distribution? (State hypotheses, check theguideline for using chi-square, give the test statistic and its P-value, and state yourconclusion.)