Question: The pharmacist at Arnold Palmer Hospital Saad Alwan receives 12

The pharmacist at Arnold Palmer Hospital, Saad Alwan receives 12 requests for prescriptions each hour, Poisson distributed. It takes him a mean time of 4 minutes to fill each, following a negative exponential distribution. Use the waiting line table, Table D.5 and Wq = Lq/λ, 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) Alwan decides to hire a second pharmacist, Ajay Aggerwal, whom he went to school with and who operates at the same speed in filling prescriptions. How will the answers to parts (a) and (b) change?

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