The value k in the number of degrees of freedom,n-k-1,for the sampling distribution of the regression coefficients represents:
A) the sample size
B) the population size
C) the number of coefficients in the regression equation,including the constant
D) the number of independent variables included in the equation

Question

Quizplus · Accepted Answer

The value k represents the number of independent variables included in the regression equation, also known as the number of predictors. The degrees of freedom for the sampling distribution of the regression coefficients is n-k-1, where n is the sample size. Therefore, k is the number of variables that are being estimated, and the value of k determines how many degrees of freedom are available for the sampling distribution of the regression coefficients.

The Value K in the Number of Degrees of Freedom,n-K-1,for