What is the average time a weaving machine

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A fabric factory has 5 weaving machines in use. These weaving machines need repair after about 20 hours of use. Breakdowns have been determined to be Poisson distributed. Jim, the maintenance worker can service a weaving machine in an average of 2 hours, following an exponential distribution. Weaving machine downtime costs $120 per hour. Jim is paid $25 per hour.

a) What is the average time a weaving machine is waiting to be repaired?

b) What is the average number of weaving machines in the repairing area?

c) What is the total hourly costs?

Reference no: EM132629540

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