In Examples 10.1 and 10.2, what if the bank did want to count the service times, in additi...

In Examples 10.1 and 10.2, what if the bank did want to count the service times, in addition to the delays in queue? That is, suppose that the performance measure is the expected average total time in system of the first 100 customers, instead of the expected average delay in queue. What is the “best” system in this case? Which criterion do you think is more appropriate? Discuss.

Example 10.1

FIGURE 10.1 One Zippy or two Klunkys?

Example 10.2

TABLE 10.1 Testing the analyst’s decision rule

FIGURE 10.2 One Zippy vs. two Klunkys, as described in Examples 10.1 and 10.2.