We are considering implementing a technological improvement to our system that would reduce the variability of the time to complete a service by 10%, but which would not affect the average service time. It would also have no impact on arrival rates, the number of servers or the capacity of the queue. In addition, as with the current system, there would be no blockage or abandonment due to excessively long wait times.

With the new technology, the average waiting time in the queue ...(i)... and the average server usage (ii) _

1) (i) would increase, (ii) would remain unchanged

2) would decrease, (ii) would increase

3) (i ) would decrease, (ii) would remain unchanged

4)(i) would remain unchanged, (ii) would increase

5)(i) would decrease, (ii) would decrease