Question: Consider a bank that has four tellers. The arrival rate of customers, r a , is 6 people per minute. The effective processing rate of

Consider a bank that has four tellers. The arrival rate of customers, r_a, is 6 people per minute. The effective processing rate of each teller, r_e, is 120 people per hour. Assume that the coefficient of variation of interarrival times, c_a, and the effective coefficient of variation of process time, c_e, are both equal to one. Compute the utilization, u, and the coefficient of variation of interdeparture times, c_d:

u: cd:

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