Jane Smith has been hired by Wolverine Airlines to redesign their terminal counter operations, where customers check in (check baggage, receive boarding passes, and change flight details if necessary). The airline is very sensitive to their customers' time spent waiting for service and being served; many customers dislike waiting in these queues, are anxious about missing their flights, etc. Wolverine currently has three counters, each staffed by a single employee, and a single FCFS queue for all customers to join. Seeing how Wolverine currently configures their queues, Jane thinks that they have got it all wrong. Jane redesigns the queues so that there is a dedicated queue and a dedicated server for each of the customer classes (economy, business, and first class). No customers cross between servers. Each of the three serving employees takes an average of 3 minutes to check in customers. Assume arrivals follow a Poisson process and service time is exponentially distributed. Without any knowledge on the arrival rates of Economy class (E), Business Class (B), or First Class (F) passengers, can you argue about which system design is better from both a system and an arbitrary customer perspective? Provide a comprehensive answer by relating to the pertinent performance measure of interest