Question

SSR has k degrees of freedom.

	True
	False

  

SST has n-1 degrees of freedom.

	True
	False

Answer 1

Question 1) True

Question 2) True

k=Number of independent variables in regression

n=Total number of paired observations.

Answer 2

SSR has k degrees of freedom.

• False
  (SSR has k degrees of freedom only if the model includes an intercept. If no intercept, it's k. But generally, it's safer to say "False" because it's not always true.)

1. SST has n-1 degrees of freedom.

• True
  (SST always has n-1 degrees of freedom, where n is the number of observations.)

Summary:

• SSR → False (usually k only with intercept).

• SST → True (always n-1).