Suzanne Gifford has just completed her MBA degree and is proud to have earned a promotion to Vice President for Customer Services at the Trust Us Bank. One of her responsibilities is to manage how tellers provide services to customers, so she is taking a hard look at this area of the bank's operations. Customers needing teller service arrive randomly at a mean rate of 15 per hour. Customers wait in a single line and are served by the next available teller when they reach the front of the line. THere are currently 2 servers. Each service takes a variable amount of time (assume an exporiential distribution), but on average can be completed in 3 minutes. The tellers earn an average wage of $16/ hour. The bank also estimates that the cost of waiting is $30 /hour. The customer metric is based upon the notion that they should not wait in the que more than 5 minutes. Note... the first t 's have been calculated for you. They remain the same for all models in this exam. Template for the M/M/s Queueing Model