(A)Estimate a Multiple Regression Model That Includes the Two Given

(A)Estimate a multiple regression model that includes the two given explanatory variables.Assess this set of explanatory variables with an F-test,and report a p-value.
(B)Conduct a partial F-test to decide whether it is worthwhile to add second-order terms (i.e., )to the multiple regression equation estimated in Question 114.Employ a 5% significance level in conducting this hypothesis test.
(C)Identify and interpret the percentage of variance explained for the model in (A).
(D)Identify and interpret the percentage of variance explained for the model in (B).
(E)Which regression equation is the most appropriate one for modeling the quality of the given product? Bear in mind that a good statistical model is usually parsimonious.