A simple regression analysis with 20 observations would yield ________ degrees of freedom error and ________degrees of freedom total.
A) 1; 20
B) 18; 19
C) 19; 20
D) 1; 19
E) 18; 20

Question

Quizplus · Accepted Answer

Degrees of freedom for the error are calculated as N − (K + 1), where N is the number of observations and K is the number of independent variables, so 20 − (1 + 1) = 18 df-error. The df-total is N − 1 = 19.

A Simple Regression Analysis with 20 Observations Would Yield ________