The Neptune Manufacturing Company has a process that requires four machines to manufacture a product. The number of machines that will break down in any given week varies and the time to repair a machine is also a random variable. Both the random variables of machine breakdowns and repair times have probability distributions given in the following tables:

1. By using different streams of random numbers for breakdowns and repair times, simulate the repair time for 15 weeks and compute the average repair time.

2. If the cost of machine downtime and repairing the machine is $100, what is the average weekly breakdown cost?

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Machine Breakdowns per Week "4 0.20 0.30 0.05 Probability 0.30 0.15 20 lo Repair Time (in hours) Probability 0.20 0.40 0.30 0.10