The TSA (Transportation Security Administration) at a major airport is evaluating a new policy of screening its customers. Current Policy (Policy 1): The TSA is managing three independent queues with one sever responsible for each queue. The customers arrive at the system and immediately are divided equally likely to each of the independent queues. New Policy (Policy 2): The new policy that TSA is preparing to implement is - pool all the three servers and manage the waiting of customers with a single queue. You are hired as an Operations analyst to evaluate both policies. The TSA has provided you with the following data - The inter-arrival time between customers arriving to the system and service time for each customer by a server follows an exponential distribution with a mean of 5 and 12 minutes respectively.