1. A fast food restaurant currently has 2 cashiers. Upon arrival, customers form a single line and place their food order at the next available register. Assume that customers arrive at the rate of 35 per hour. It takes an average of 3 minutes to place and process each customer's order. Assume that arrival rate follows a Poisson distribution and service time follows an exponential distribution. To determine the efficiency of operations, the cafeteria manager wishes to examine several queue operating characteristics. Based upon the analysis, the manager believes that if the average waiting time per customer in the system is greater than 5 minutes, then a request for an additional employee should be made. Should the manager make a request to hire an additional employee?