How many tellers should be on duty in this bank branch

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Reference no: EM133433769

Question: An average of 40 customers per hour arrives at a bank branch office (Poisson arrival) and wait in a single line to be served by the first available teller. The average time for each teller to service a customer is 4 minutes (exponentially distributed). Each teller earns $160/day and the bank branch office assesses a waiting cost of $50/day that a customer waits in the system.

How many tellers should be on duty in this bank branch office to minimize the total cost of this waiting line system?

Reference no: EM133433769

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