Suppose You Are Interested in Explaining Student Evaluations of Teaching

Essay

Suppose you are interested in explaining Student Evaluations of Teaching (which are calculated on the following 4-point scale: (0)Poor, (1)Fair, (2)Good,and (3)Excellent)as a function of Average GPA,% Freshmen,% Male,and % Majors.
a)Write out the regression model that you would want to estimate.Explain the dependent variable in detail.
b)Could you estimate the above model by OLS? Are there any potential shortcomings of estimating such a model? If so,what are they? Explain.
c)In reference to your answer in (b),is there an alternative estimator that is more preferred? If so,what is it? Why is it preferred to the model in (b)? Explain.