Recall Example 7.12. The full data set related to CEO compensation is contained in Appendix C. Use stepwise regression to select the "best" model with k = 3 predictor variables. Fit the stepwise model, and interpret the estimated coefficients. Examine the residuals. Identify and explain any influential observations. If you had to choose between this model and the k = 2 predictor model discussed in Example 7.12, which one would you choose? Why?