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Renuka Jain’s Car Wash takes a constant time of 4.5 minutes in its automated car wash cycle.
The typical subway station in Washington, DC, has six turnstiles, each of which can be controlled by the station manager to be used for either entrance.
Altug’s Coffee Shop decides to install an automatic coffee vending machine outside one of its stores to reduce the number of people standing in line inside.
Beth Zion Hospital has received initial certification from the state of California to become a center for liver transplants.
Temple Trucking Co. just hired Ed Rosenthal to verify daily invoices and accounts payable. He took 9 hours and 23 minutes to complete his task on the first day.
Why isn’t the learning-curve concept as applicable in a high-volume assembly line as it is in most other human activities?
Lori Cook, manager of the Winter Park Hotel, is considering how to restructure the front desk to reach an optimum level of staff efficiency and guest service.
The Accounts Receivable balance in the accounting books averages $2 million. On average, how long are customers taking to pay their bills?
Gamma Bank processes a typical loan application in 2.4 weeks. Customers fill out 30 loan applications per week.
There is also an average of 8 customers at First Bank at any time. The probability of the arrival distribution is unknown.
The Chattanooga Furniture store gets an average of 50 customers per shift. Marilyn Helms, the manager.
A new registration manager, Dwayne Cole, is hired who initiates a program to entertain the people in line with a juggler whom he pays $15/hour.
There are 200 people arriving per hour (Poisson distributed), and the cost of their waiting time in the queue is valued at $100 per person per hour.
Briefly describe three situations in which the first-in, first-out (FIFO) discipline rule is not applicable in queuing analysis.
Custom Vans, Inc., specializes in converting standard vans into campers. Depending on the amount of work.
For the following Gregory Bier Corp. data, find the starting solution and initial cost using the northwest-corner method. What must you do to balance.
Allen Air Conditioning manufactures room air conditioners at plants in Houston, Phoenix, and Memphis.
Captain Borders Corp. manufacturers fishing equipment. Currently, the company has a plant in Los Angeles and a plant in New Orleans.
Complete the analysis, determining the optimal solution for shipping at the Mosier Clothing Group.
Suppose that a second server can be added to team up with the first (and, in effect, act as 1 faster server).
What is the probability that there are more than two people in the system? More than three people? More than four?
Neve Commercial Bank is the only bank in the town of York, Pennsylvania. On a typical Friday, an average of 10 customers per hour arrive at the bank .
The probability that more than 2 are broken and waiting to be repaired or being serviced? More than 3? More than 4?
By how much would your answer to part (a) be reduced if a second drive-through window, with its own server, were added?
Dr. Tarun Gupta, a Michigan vet, is running a rabies vaccination clinic for dogs at the local grade school. Tarun can “shoot” a dog every 3 minutes.