A multiple regression analysis uses 5 independent variables and 15 observations.The F ratio for testing the 'all s are 0' null hypothesis turns out to be statistically significant at the 5% significance level.It must be true that ____ of the regression coefficients are (is) statistically significant at the 5% level.
A)all
B)at least one
C)most
D)none
E)none of the above

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The Answer of A multiple regression analysis uses 5 independent variables and 15 observations.The F ratio for testing the 'all s are 0' null hypothesis turns out to be statistically significant at the 5% significance level.It must be true that ____ of the regression coefficients are (is) statistically significant at the 5% level.
A)all
B)at least one
C)most
D)none
E)none of the above

A Multiple Regression Analysis Uses 5 Independent Variables and 15