If SSR = 30 and there are 2 independent variables involved in a regression analy

Question

If SSR = 30 and there are 2 independent variables involved in a regression analysis, then the mean square due to regression (MSR) equate a. 30 b. 15 c. 28 d. 0.7 (Circle the correct response) The purpose of the F Test in multiple regression is to test for a. independence of variables b. statistical significance of independent variables c. multicollinearity d. statistical significance of the overall model (Circle the correct response) The purpose of the t Test in multiple regression is to test for a. independence of variables b. statistical significance of independent variables c. multicollinearity d. statistical significance of the overall model (Circle the correct response) The purpose of the F Test in simple regression is to test for a. independence of variables b. statistical significance of independent variables c. multicollinearity d. statistical significance of the overall model (Circle the correct response) The purpose of the t Test in simple regression is to test for a. Independence of variables b. statistical significance of independent variable c. multicollinearity d. statistical significance of the overall model

Explanation / Answer

1) in regression degree of freedom is always 1. MSR = SSR/1 = SSR = 30

2) purpose of F test in multiple regression is to test for statistical significance of overall model

3)  purpose of t test in multiple regression is to test for statistical significance of independent variable. (checks the significance of individual regression coefficients.)

4)  purpose of F test in simple regression is to test for statistical significance of overall model

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