Exhibit 13.2
The following questions refer to the information and output below.
A barber shop has one barber who can give 12 haircuts per hour. Customers arrive at a rate of 8 customers per hour. Customer inter-arrival times and service times are exponentially distributed. The following queuing analysis spreadsheet was developed from this information. 
-Refer to Exhibit 13.2. Based on this report what is the average waiting time before the barber begins a customer's haircut?
Definitions:
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