Statistical Techniques in Business and Economics
Statistical Techniques in Business and Economics
18th Edition
ISBN: 9781260579611
Author: Douglas Lind; William Marchal; Samuel Wathen
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 12, Problem 21E

a.

To determine

Plot the interaction graph.

Find whether there is an interaction effect on sales.

Describe the interaction effect of machine and position.

b.

To determine

Compute an ANOVA to test for position, machine, and interaction effects on sales at the 0.05 significance level.

Report the statistical results.

c.

To determine

Compare the inside and outside mean sales for each machine.

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