A department has 5 semiautomatic pieces of equipment which operate for an average of 79 minutes before they must be reloaded.The reloading operation takes an average of 21 minutes per machine.Assume exponential distributions.
(A) What is the minimum number of servers needed to keep the average downtime per cycle to less than 25 minutes?
(B) If 1 server is used, what percentage of time will the machine be down?
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