San Diego State University Operations And Supply Chain Management Assignment Help - Line

Question - Bill First, general manager of Worthmore Department Store, has estimated that every hour of
customer time spent waiting in line for the sales clerk to become available costs the store $100 in lost
sales and goodwill.
Customers arrive at the checkout counter at the rate of 30 per hour, and the average service time is 3
minutes. The Poisson distribution describes the arrivals and the service times are exponentially
distributed.
The number of sales clerks can be 2, 3, or 4, with each one working at the same rate. Bill estimates
the salary and benefits for each clerk to be $10 per hour. The store is open 10 hours per day.
(a) Find the average time in the line if 2, 3, and 4 clerks are used.
(b) What is the total time spent waiting in l ...Read More ine each day if 2, 3, and 4 clerks are used?
(c) Calculate the total of the daily waiting cost and the service cost if 2, 3, and 4 clerks are used. What
is the minimum total daily cost? ...Read Less

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