How Good Is the Fit?
q The quality of the linear
regression can be analyzed
using the “Analysis of
Variance”.
q The analysis separates the
total variance of y  (Sy2) into
the part that can be accounted
for by the linear regression
(b2Sx2) and the part that can
not be accounted for by the
regression (Se2):
            Sy2 = b2Sx2 + Se2
0