As a second extension to the checkout-line simulation, change the program from the preceding exercise so that there is a single waiting line served by multiple cashiers—a practice that has become more...

As a second extension to the checkout-line simulation, change the program from the preceding exercise so that there is a single waiting line served by multiple cashiers—a practice that has become more common in recent years. In each cycle of the simulation, any cashier who becomes idle serves the next customer in the queue. If you compare the data produced by this exercise and the preceding one, what can you say about the relative advantages of these two strategies for organizing a checkout line?