Problem
Customers enter the camera department of a store at the average of a rate of six per hour. The department is staffed by one employee, who takes an average of six minutes to serve each arrival. Assume this is a simple
Poisson arrival, and exponentially distributed service time situation.
• As a casual observer, how many people would you expect to see in the camera department (excluding the clerk)? How long would a customer expect to spend in the camera department (total time)?
• If the service time becomes fixed at six minutes per customer, how many people would you expect to see in the camera department (excluding the clerk)? How long would a customer expect to spend in the camera department (total time)?