The pharmacist at Arnold Palmer Hospital, Wende Huehn- Brown, receives 15 requests for prescriptions each hour, Poisson distributed. It takes her a mean time of 3 minutes to fill each, following a negative exponential distribution. Use the waiting- line table, Table D. 5, and Wq = Lq > l, to answer these questions. a) What is the average number of prescriptions in the queue? b) How long will the average prescription spend in the queue? c) Wende decides to hire a second pharmacist, Ajay Aggerwal, with whom she went to school and who operates at the same speed in filling prescriptions. How will the answers to parts (a) and (b) change? d)using the gicen relationship the average time a perscription spent in the queue after Wende was hired ____ minutes