Question: Problem 2 [Queueing Models] (35 points). Customers arrive at Lee's Barbershop. The average inter-arrival times are 30 mins, following Exponential Distribution. Service time per person

Problem 2 [Queueing Models] (35 points). Customers arrive at Lee's Barbershop. The average inter-arrival times are 30 mins, following Exponential Distribution. Service time per person also follows Exponential distribution, 10 mins on average per person. There are two barbers in this shop and only one chair in the waiting line. If any customers arrive and find that a chair already taken, then they will leave immediately. Q2-1. Develop the rate diagram. Q2-2. Develop all the balance equations. All the i&i should be specified in the diagram

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