The test statistic used to test the overall significance of a multiple regression model, the null hypothesis that each one the

-coefficients of thex-variables in the model is equal to zero, is tested against the alternative hypothesis that at least one the

-coefficients of thex-variables in the model is zero, is the __?___

a. tstatistic

b. Fvalue from theF-distribution tables

c. 2statistic

d Fvalue calculated as mean square regression divided by mean square error