1. Describe two examples of unethical behavior related to waiting line management and state which ethical principles they violate.
2. 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:
a. The average number of customers awaiting repairs.
b. System utilization.
c. The amount of time during an eight-hour day that the repairman is not out on a call.
d. The probability of two or more customers in the system.