To test the validity of a multiple regression model,we test the null hypothesis that the regression coefficients are all zero by applying the:
A)F-test
B)t-test
C)z-test
D)chi-square test

Question

Quizplus · Accepted Answer

The F-test is the appropriate test to determine the validity of a multiple regression model by evaluating the null hypothesis that all regression coefficients are equal to zero. The F-test compares the ratio of the explained variance to the unexplained variance in a model, and if the ratio is significant, it indicates that the model is a good fit and the null hypothesis is rejected. Therefore, the F-test is the best choice to test the validity of a multiple regression model.

To Test the Validity of a Multiple Regression Model,we Test