*2. Tasca Oil owns a pipeline booster unit that operates continuously. The time between breakdowns for each booster is exponential with a mean of 20 hours. The repair time is exponential with mean 3 hours. [n a particular station, two repairpersons attend 10 1 boosters. The hourly wage for each repairperson is $18. Pipeline losses are estimated ~

to be $30 per broken booster per hour. Tasca is studying the possibility of hiring an !.

additional repairperson.

(a) Will there be any cost savings in hiring a third repairperson?