1. Compare true average in the group, use paired T-test. Minitab-stat-paired t.
Check the normality first, if it is normal we can do the following up procedures.
2. Find the one side randomization p-value. Randomize the data by two groups, find sum of
gro
Chapter 4 Homework
Exercise 4.2: Use the data from Exercise 3.3. Compute a 99% confidence interval for the
difference in response between the average of the three treatment groups (acid, pulp, and salt)
and the control group.
Twelve orange pulp silage sam
Exercise 5.1
We have five groups and three observations per group. The group means are 6.5, 4.5, 5.7, 5.6,
and 5.1, and the mean square for error is .75. Compute simultaneous confidence intervals (95%
level) for the differences of all treatment pairs.
Sou
A First Course in
Design and Analysis
of Experiments
A First Course in
Design and Analysis
of Experiments
Gary W. Oehlert
University of Minnesota
Cover design by Victoria Tomaselli
Cover illustration by Peter Hamlin
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