What is the probability that all machines are working

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Reference no: EM131129950

An operator is in charge of FIVE machines. After each machine completes a job, the operator must reset it before a new job is started. In other words, the operator’s task is to set up each machine when a job is completed. The time to complete a job on any machine is negative exponential with mean 45 minutes. The time to set up any machine is also negative exponential with mean 8 minutes.

(a) Determine the average number of machines that are awaiting set up or are being set up.

(b) Determine the average time a machine is awaiting set up or are being set up.

Reference no: EM131129950

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