Please solve problem 7.8 in text book Applied Linear Statistical Models Fifth Edition. Please solve it using an excel. 7.8. Refer to Commercial properties Problems 6.18 and 7.7. Test whether both X2 and X3 Can be dropped from the regression model given that XI and X4 are retained; use ex = .01. State the alternatives, decision rule, and conclusion. What is the P-value of the test?.