Tutorial May 14, 2014
Chapter 3- RANDOM EFFECT MODEL
3.32. An article in the Journal of the Electrochemical Society (Vol. 139, No. 2, 1992, pp. 524-532) describes an
experiment to investigate low-pressure vapor deposition of polysilicon. The experiment wa

Tutorial November 24, 2015
1. A manufacturing engineer is studying the dimensional variability of a particular component that
is produced on three machines. Each machine has two spindles, and four components are
randomly selected from each spindle. The re

Tutorial December 1, 2015
1.
A pharmaceutical company is interesting in studying the efficiency of a new medication for diabetes
with respect to a standard treatment. The design of the experiment calls to randomly select five
patients with diabetes type I

Tutorial October 6, 2015
5.2. The following output was obtained from a computer program that performed a two-factor ANOVA on a
factorial experiment.
Two-way ANOVA: y versus A, B
Source
DF
SS
MS
F
P
A
1
?
0.0002
?
?
B
?
180.378
?
?
?
Interaction
3
8.479
?

Tutorial October 20, 2015
7.1 An engineer is interested in the effects of cutting speed (A), tool geometry (B), and cutting angle on the life (in
hours) of a machine tool. Two levels of each factor are chosen. Three batches of material is used for the cut

Tutorial
3.4.
A computer ANOVA output is shown below. Fill in the blanks. You may give bounds on the P-value.
One-way ANOVA
Source
DF
SS
MS
F
P
Factor
?
?
246.93
?
?
Error
25
186.53
?
Total
29
1174.24
Completed table is:
By difference DF(Factor) = DF(Tota