A study of the scores on an in plant course in management principles - 6183

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

D. Test scores 

 
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 yiel