Suppose that in the barbershop there are only 2 seats available for waiting customers. Therefore when a new customer arrives if there are 2 customers already waiting for service he/she has to leave the system without any service. Below two streams of random numbers for the arrival and service times are given. The first (EXPO) stream is dedicated to the arrival process while the second (NORM) is dedicated to service times.

1.Create EXPO(5) ,EXPO(5) numbers: 9 1 3 1 2 6 4 5 2 1 4 8 5 9 4 2.Queue 3.Seize Barber 4.Delay NORM(8,4) ,NORM(8,4) numbers: 8 10 5 4 4 9 7 12 10 10 8

5.Release Barber 6.Dispose

a) Assuming that the first customer arrival occurs at time 0 conduct a hand simulation in the space below. Then, answer questions b and c on the next page. Simulate until time 60. Display the future events list and the current events list at the end of the simulation) (i.e., at T=60). (While building the simulation do not assign any service time (and related random digit) to a lost customer.) b) What is the average time in queue for entities in this simulation? c) Based on the simulation data what is your estimation for the probability that a customers waiting time will exceed 5 minutes?