12. Arrivals to an information desk have an interarrival time that follows the distribution shown in the next table. Service times follow another empirical distribution, also shown in the table. There is only one customer service representative who starts work at time 0.

Using the following table of random numbers, conduct the simulation for the next five arrivals. In setting up your simulation, some of the variables that you must keep track of are

(a) the time of arrival of a customer (i.e., cumulative interarrival time),

(b) the time at which service starts,

(c) the time at which service ends,

(d) the number of minutes the customer spent in the system, and

(e) the number of minutes the service representative was idle. If time in the system is valued at $30.00 per hour and the service representative is paid $15.00 per hour, what is the total cost of this system?