Q 3-2-2. Please find the incoming rates and utilization of Departments A,B,C, and D (1,2,3,4, and 1,2,3,4). Hint: (IR)1=1.31.621.41.030.291.880.980.870.321.361.821.180.150.890.581.47 Consider an M/M/1 system. The inter-arrival time follows Exponential Distribution with an average of 20 mins, while the service time follows Exponential Distribution with an average of 15 mins. Problem 3-2 (Queueing Network) - 10 points. Consider the following Queueing network. There are three receiving points at Departments A, B, and C and two shipping points at Departments B and D, respectively