For the Bigelow Manufacturing example in this chapter, re-create the simulation for the improved maintenance program shown in Table 14.11 and Exhibit 14.8 using Crystal Ball. For the improved program assume that the repair time is normally distributed with a mean of 1.70 days and a standard deviation of 0.6 day. Assume that the time between breakdowns is defined by the triangular distribution for the improved maintenance program used in the example. Using Crystal Ball, determine the average annual number of breakdowns, average annual repair time, and average annual repair cost. Compare this improved maintenance system with the current one (Problem 27), and indicate whether it should be adopted given the cost of improving the system (i.e., $20,000).
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