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Suppose that the average time before breakdown is normally distributed with a mean of 2.5 weeks and a standard deviation of .4 weeks. If breakdowns cost an average of $1,200 and preventive maintenance costs $800, what is the optimal maintenance interval?

A. Every .67 weeks

B. Every .33 weeks

C. Every 2.67 weeks

D. Every 3.25 weeks

E. Every 3.12 weeks

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Operation Management, Management Studies

Category:- Operation Management
Reference No.:- M91766923

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