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What are the mean and standard deviation of the scores

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Reference no: EM132522631

Grading managers. some companies "grade on a bell curve" to compare the performance of their managers and professional workers . this forces the use of some low performance ratings so that not all workers are listed as "above average " Ford motor company's performance management process" for this year assigned 10%A grades , 80% B grades, and 10% C grades to the companys managers. Suppose Fords performance score really are Normally distributed. This year , managers with scores less than 25 received C grades and those with score above 475 receive A grades. What are the mean and standard deviation of the scores?

Reference no: EM132522631

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