Refer to Exercise 16.7. a. Test the hypothesis that the relationships between increase in sales and average
Question:
a. Test the hypothesis that the relationships between increase in sales and average monthly sales have equal slopes for the three promotions at the α = .05 level.
b. Does there appear to be a difference in the increase in sales for the three promotions?
c. Are the necessary conditions for conducting the tests of hypotheses in parts (a) and (b) satisfied with this data set?
In exercise
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Related Book For
An Introduction To Statistical Methods And Data Analysis
ISBN: 9781305465527
7th Edition
Authors: R. Lyman Ott, Micheal T. Longnecker
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