The organizers of a conference in the Houston Convention Center are evaluating the possibility of setting up a computer area where attendees can check their e-mail on computers provided by the organization. There will be one common queue for all computers and only one person uses a computer at a time. On average there are 20 attendee arrivals per hour and the average time a person spends on the computer is 15 minutesTo ensure that waiting times are not too long, the organizers want to ensure that the utilization of the computers doesn’t exceed 80 percent. At least how many computers do they need to have?The organizers of the conference have decided to buy 6 computers. Assume that the standard deviation of arrivals is equal to the average inter-arrival time, and the standard deviation of processing times is equal to the average processing time. What is the average waiting time to check e-mails?

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Answered: To ensure that waiting times are not…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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The organizers of a conference in the Houston Convention Center are evaluating the possibility of setting up a computer area where attendees can check their e-mail on computers provided by the organization. There will be one common queue for all computers and only one person uses a computer at a time. On average there are 20 attendee arrivals per hour and the average time a person spends on the computer is 15 minutes

To ensure that waiting times are not too long, the organizers want to ensure that the utilization of the computers doesn’t exceed 80 percent. At least how many computers do they need to have?
The organizers of the conference have decided to buy 6 computers. Assume that the standard deviation of arrivals is equal to the average inter-arrival time, and the standard deviation of processing times is equal to the average processing time. What is the average waiting time to check e-mails?

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