STATISTICS FOR ENGR.+SCI.(LL)-W/ACCESS
4th Edition
ISBN: 9781260133295
Author: Navidi
Publisher: MCG
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Chapter 9.5, Problem 13E
To determine
Identify the representation of the estimate of the main effect of factor A.
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In a 25−1 design (such as the one in Exercise 12) what does the estimate of the main effectof factor A actually represent?a) The main effect of A.b) The sum of the main effect of A and the BCDE interaction.c) The difference between the main effect of A and the BCDE interaction.d) The interaction between A and BCDE.
In a two factor factorial design with two design factors A and B, why do we generally include the interaction term in the model? What is the major concern if the model ignores the interaction effect?
In a two-factor experiment with two levels of factor A and two levels of factor B, three of the treatment means are essentially identical and one is substantially different from the others. What result(s) would be produced by this pattern of treatment means?
a. a main effect for factor A
b. a main effect for factor B
c. an interaction between A and B
d. main effects for both A and B, and an interaction
Chapter 9 Solutions
STATISTICS FOR ENGR.+SCI.(LL)-W/ACCESS
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