Montgomery gathered data on an experiment in paper production to determine the effects of
pulp cooking time (having two levels: 3 hours and 4 hours),
vat pressure (having three levels: 400, 500, and 650), and
percent of hardwood concentration (having three levels: 2, 4, and 8)
on the response variable: paper strength.
DO THE QUESTION IN SAS. PLEASE INCLUDE YOUR CODE TO GET THE
ANSWER.
(a) Fit a three-way ANOVA, including ALL possible interaction terms.
At a 5% significance level,...