Last updated 16-Nov-95 [`http://www.stat.uchicago.edu/~thisted/courses/227/sel412.html`]

There is an error in Selvin's formal statistical test for the change in
due to the addition of **q** additional predictors to a regression
model. The F statistic in (4.12) should read

The denominator is in error in the book. This ratio assesses the increase
in relative to the proportion of *unexplained* variation
remaining in the full model.