A company wishes to compare typing accuracy on two kinds of computer keyboards. Fifteen experienced typists type
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A company wishes to compare typing accuracy on two kinds of computer keyboards. Fifteen experienced typists type the same 600 words. Keyboard X1 is used 7 times and keyboard X2 is used 8 times, with the following results:
Compute the Mann–Whitney U statistic, and state the assumption for a U test.
What does a large calculated U-value indicate?
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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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