A machine shop repairs small electric motors, which arrive according to a Poisson process at the rate of 12 per week (5-day, 40-hour workweek). An analysis of past data indicates that engines can be repaired, on the average, in 2.5 hours, with a variance of 1 hour ^2. How many working hours should a customer expect to leave a motor at the repair shop (not knowing the status of the system)? If the variance of the repair time could be controlled, what variance would reduce the expected waiting ti
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A machine shop repairs small electric motors, which arrive according to a Poisson process at the rate of 12 per week (5-day, 40-hour workweek). An analysis of past data indicates
A machine shop repairs small electric motors, which arrive according to a Poisson process at the rate of 12 per week (5-day, 40-hour workweek). An analysis of past data indicates that engines can be repaired, on the average, in 2.5 hours, with a variance of 1 hour ^2. How many working hours should a customer expect to leave a motor at the ...
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