A study of the scores on an in plant course in management - 12041

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A study of the scores on an in plant course in management principles and the years of service of the employees enrolled in the course yielded the following statistics: Test Scores: mean=100 variance = 225 Years of Service: mean=5 variance = 81 Of test scores and years of service, which measure has the greater dispersion? 

A.    It is impossible to tell.

B.    Years of service

C.    Test scores

D.   The short-run effects of those changes are always more beneficial to society than are the long-run effects.

 
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A study of the scores on an in plant course in management principles and the years of service of the employees enrolled in