What fraction of time is suzy busy

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Reference no: EM133298822

Assignment:

Suzy's pretzel shop employs a single customer service employee (Suzy), who takes orders for pretzel, fills them, and takes payment. She services at most one customer at a time. The time required to service a customer is random, and is exponentially distributed with a mean of 25 seconds. Customers arrive at an average rate of 120 customers per hour with exponentially distributed inter-arrival times. Arriving customers never balk or renege.

a) What fraction of time is Suzy busy?

Reference no: EM133298822

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