Exhibit 13.7 The Following Questions Refer to the Information and Output Below

Short Answer

Exhibit 13.7
The following questions refer to the information and output below.
A tax accountant has found that the time to serve a customer has a mean of 30 minutes (or 0.5 hours) and a standard deviation of 6 minutes (or 0.1 hours). Customer arrivals follow a Poisson distribution with an average of 60 minutes between arrivals. The following queuing analysis spreadsheet was developed from this information.
-Refer to Exhibit 13.7. Based on this report what is the average number of customers waiting to be helped?