Question: 3. For Project Crashing Practice the solved math problem 5 from Stevenson's Operation Management Book (Assignment) 4) Repair calls are handled by one repairman at

3. For Project Crashing Practice the solved math problem 5 from Stevenson's Operation Management Book (Assignment) 4) Repair calls are handled by one repairman at a photocopy shop. Repair time, including travel time, is exponentially distributed, with a mean of two hours per call. Requests for copier repairs come in at a mean rate of three per eight- hour day (assume Poisson). Determine: 1. The average number of customers awaiting repairs. 2. System utilization. 3. The amount of time during an eight-hour day that the repairman is not out on a call. 4. The probability of two or more customers in the system

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