Repair calls for Xerox copiers in a small city are handled by one repair person. Repair duration, inc hid in travel time, is Ex potentially distributed with a mea n of two hour s pe r c a 11. Requests for copier repairs come in at a mean rate of three per eight-hour day (assume Poisson). Assume infinite source. Determine:
a. The average number of copiers waiting for repair.
b. Server utilization.
c. Tire amount of time during an eight-hour day that the repair person is not out on a call,
d. The probability of two or more copiers in the system (waiting for or being repaired),
e. Tire probability that a copier waits more than four hours for repair to begin.