A study of the scores on an in plant course in management principles - 6289

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

 B.   Test scores 

 C.   Years of service 

 D.   It is impossible to tell. 

 

 

Solution Description

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 = 2