Call Center for Computer Support Consider a call center for computer support with the following data: -- 3 representatives answer phones (each can handle all types of calls) -- Calls arrive according to a Poisson process. On average, there are 20 calls per hour. -- The service time of each call follows an exponential distribution. The average service time is 4 minutes per call. Find the following operating characteristics: Questions: 3-a) Utilization (in decimal number) 3-b) Probability of delay (in decimal number) 3-c) Average queue length 3-d) Average waiting time (in minutes) in the line 3-e) Average throughput time (in minutes) 3-f) Average number of customers in system