Renting SUVs

The airport branch of a car rental company maintains a fleet of 50 SUVs. The airport branch is open 24 hours a day. Customers arrive at the rental company from the airport 24 hours a day - the average time between customers arriving and requesting an SUV is 2.4 hours. However, there is some variability in customer arrivals, in fact, the time between arrivals has a standard deviation of 2.4 hours. Assume that demand arrives in a similar pattern over the course of a 24 hour day. Also assume that, if all SUVs are rented, customers are willing to wait until there is an SUV available. An SUV is rented, on average, for 3 days with a standard deviation of 1 day.

1. What represents a 'server' in this example?

1. What is the average Demand Rate (expressed in customers/day)?_

1. What is the average Capacity (expressed in customers/day)?

1. What is the utilization of the rental company's fleet?

1. On average, how many cars will the car rental company have sitting on the lot?

1. On average, how long will an average customer have to wait for an SUV?