Customers at a bank needing teller service arrive randomly at a mean rate of 30 per hour. Customers wait in a single lin

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answerhappygod
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Customers at a bank needing teller service arrive randomly at a mean rate of 30 per hour. Customers wait in a single lin

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Customers at a bank needing teller service arrive randomly at amean rate of 30 per hour. Customers wait in a single line and areserved by the next available teller when they reach the front ofthe line. Each service takes a variable amount of time (assume anexponential distribution), but on average can be completed in 3minutes. The tellers earn an average wage of $18 per hour.
If two tellers are used, what will be the average waiting timefor a customer before getting serviceby a teller?
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