Chapter 12.2, Problem 43E

a.

To determine

Test for the statistical significance of the regression at level of significance $\alpha =0.05$ and draw necessary conclusions.

Find the P-value for the test.

b.

To determine

Construct the t-test statistic for each of the regressors and draw necessary conclusions at level of significance $\alpha =0.05$.

c.

To determine

Calculate the amount by which the regressor TD percentage ($x_2$) increases the regression sum of squares.

Perform an F-test for $H_0:{\beta }_2=0$ versus $H_1:{\beta }_2\ne 0$ at level of significance $\alpha =0.05$ and draw necessary conclusions.

Find the P-value for the test.