The F-test for ANOVA in a regression model with 4 predictors and 47 observations would have how many degrees of freedom?
A)(3, 44)
B)(4, 46)
C)(4, 42)
D)(3, 43)

Question

Quizplus · Accepted Answer

The F-test for ANOVA in a regression model calculates degrees of freedom as follows: for the numerator (degrees of freedom for the model), it's the number of predictors, which is 4. For the denominator (degrees of freedom for the error), it's the total number of observations minus the number of predictors minus 1, which is 47 - 4 - 1 = 42. Therefore, the correct degrees of freedom are (4, 42).

The F-Test for ANOVA in a Regression Model with 4