In multiple regression analysis,to test H₀ : β₁= β₂ = ∙ ∙ ∙ ∙ ∙ ∙ = β_k= 0,an F statistic with K and n - K - 1 degrees of freedom is used.

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This is true. In multiple regression analysis, to test the null hypothesis that all coefficients of a particular independent variable are equal to 0, an F statistic with K and n - K - 1 degrees of freedom is used. Here, K represents the number of coefficients being tested, and n is the sample size.

In Multiple Regression Analysis,to Test H0 : β1 = β2

In Multiple Regression Analysis,to Test H₀ : β₁= β₂