Question: In a multiple linear regression model with K independent variables, an F-test is applied to test for the overall fit. The degrees of freedom are

In a multiple linear regression model with K independent variables, an F-test is applied to test for the overall fit. The degrees of freedom are

A. dfn=n-K-1, dfd=K

B. dfn=K, dfd=n-K-1

C. dfn=5, dfd=n-2

D. dfn=n-2, dfd=5

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