8) (12 points) Suppose you are interested in estimating the effect of number of classes skipped (skipped) on university grade point average (colGPA) using the following regression model colGPA = Bo + B, skipped + u. The results from the regression are as follows: Source 1 SS dt MS - Modell Residual 1.33028272 1.33028272 1 139 Number of obs F(1,139) Prob > F R-squared Ady R-squared Root MSE 141 10.23 0.0017 X 0.0618 Y Total ! 19.4060994 140 . 138614996 colGPA! Coef. Std. Err. t P> It! [95) Cont. Intervall skipped cons 0279896 0.002 0.000 3.06851 -.034181 3.237658 a. (4 points) Compute the numbers A and B b. (4 points) Compute the numbers X and Y. C. (4 points) Explain whether you think A is likely to be an unbiased estimate of B