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6. Queuing Theury In a local hospital emergency room, the management engineer has concluded that the emergency cases arrive pretty much at random (a Poisson Input Process), so that inter arrival times have an exponential distribution. She has chosen a MlM/S model for a preliminary study of this queuing system. By projecting the available data for the early evening shift into next year, she estimates that the patients will arrive at an average rate of 1 every is hour. A doctor requires an average of 20 minutes to treat each patient. Find: a. The probability that the servers are busy (p), b. The probability of exactly one client in the system c. The probability for n22 (Pn) d. The values for Lo, L, wq, w