18 Homework Problems Problem 18-1 Repair calls are handled by one repairman at a photocopy shop. Repair time, including travel time, is exponentially distributed, with a mean of 25 hours per call Requests for copler repairs come in at a mean rate of 2.1 per eight-hour day (assume Poisson). a. Determine the average number of customers awaiting repairs. (Round your answer to 2 decimal places.) Number of customers b. Determine system utilization (Round your answer to the nearest whole percent. Omit the sign in your response.) ences System utilization c. Determine the amount of time during an eight-hour day that the repairman is not out on a call (Use your rounded answer from Part b. Round your answer to 2 decimal places.) Amount of time hours d. Determine the probability of two or more customers in the system (Do not round intermediate calculations. Round your answer to 4 decimal places.) Probability Prov 1 of 3 Question 1 (10 points) Explain how an appliance retailer could use a push strategy. How might the same retailer employ a pe strategy. Explain one major factor that would determine which strategy is appropriate for the compa 41 HI