For a linear regression equation calculated for a sample of n = 20 pairs of X and Y values, what would be the df value for the standard error of estimate?
A)1
B)2
C)18
D)19

Question

Quizplus · Accepted Answer

The degrees of freedom for the standard error of estimate in linear regression is calculated as n - 2, where n is the number of data pairs. Here, n = 20, so df = 20 - 2 = 18.

For a Linear Regression Equation Calculated for a Sample of N