The First National Bank (FNB) bank has a branch office with a number of tellers serving customers in the lobby, a teller serving the drive-in line, and a number of service managers serving customers with special requests. The lobby, drive-in, and service managers each have a separate single queue. Customers may join either of the queues (the lobby queue, the drive-in queue, or the service managers' queue). FNB is interested in performance evaluation of their customer service operations a What are the random components in the system and their parameters? b What performance measures would you recommend FNB to consider? What data would you collect and why?
