Why is Oil omitted from the regression-What would happen if it were include

Essentials of Econometrics Empirical Exercises SW6 E6.1 Using the data set Teaching Ratings described in Empirical Exercises 4.2, carry out the following exercises. (a) Run a regression of Course Eval on Beauty. What is the estimated slope? (b) Run a regression of CourseĀ  Eval on Beauty, including some additional vari- ables to control for the […]