QUESTION 2 Discuss why perfect multicollinearity can be a problem for the estimation of the LRM. In addition, discuss the issue of imper collinearity and its impact on the OLS estimation. TTT Arial +3 (12pt) T i Path: Words:0 18 points Save Answ QUESTION 3 We want to estimate the regression model COURSE_EVAL - betaO + beta1 * BEAUTY + error. The covariance between COURSE EVAL and BEAUTY is 0.063, the variance of COURSE EVAL IS 0.3249 and the variance of BEAUTY is 0.5615. 1) Calculate the OLS estimate of beta1 (type the operation that you are doing to obtain the result as well) 2) Interpret the coefficient