The manufacturer of a new shaving cream tests 3 new advertising campaigns in a total of 21
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The manufacturer of a new shaving cream tests 3 new advertising campaigns in a total of 21 markets. Sales in the third week after introduction are given in the accompanying table.
Use the Kruskal–Wallis test to determine whether the median sales levels for the 3 campaigns are different at the 5 percent level of significance.
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Related Book For
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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