answer in 30 minutes. 1) A worker travels between her home and work.She has multiple routes that can be taken. Her firstroute (route A) typically takes 60 minutes, and thesecond route (route B) typically takes 45 minutes. Ifthere is traffic on route A, then the route will take 70minutes. If there is traffic on route B, then thisincreases to 90 minutes. Route A has a traffic delayprobability of .20 and route B probability is .30.a. What is the recommended route utilizing theexpected value approach?b. If utilities are to be assigned to the traveltimes, what is the appropriate lottery?C. Use the lotter of part b and assume thedecision maker expresses indifference probabilitiesof:P = 0.80 for 60 minutesP = 0.60 for 70 minutes%3D%3DWhat route should the decision maker select? Is thedecision maker a risk taker or a risk avoider?

The most common way of picking a way for traffic inside an organization, or across or across a large…

Answered: 1) A worker travels between her home…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section12.5: Analytic Steady-state Queueing Models

Problem 26P

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South Beach University is conducting an online exam. There are 1,200 students taking this exam. Students are required to download the exam questions from the university’s learning management system (LMS), solve the questions, type their workings and answers in a computer word processing application, and submit the files back to the LMS. It is estimated that the LMS takes an average of 30 seconds to process a submission. For example, if a student submits his files at time T and the LMS is able to start processing his submitted files right away, it is estimated that the LMS accepts the submission at T + 30 seconds. The cut-off time of the exam is 12pm on the exam day, that is, if a submission cannot be accepted by the LMS by 12pm, it is considered late submission. Due to the capacity of the LMS servers, a maximum of 150 submissions can be processed at any point of time. Submissions are processed on a first-come-first-serve basis. If the number of submissions exceeds the capacity, some…
During the campus Spring Fling, the bumper car amusement attraction has a problem of cars becoming disabled and in need of repair. Repair personnel can be hired at the rate of $20 per hour, but they only work as one team. Thus, if one person is hired, he or she works alone; two or three people work together on the same repair. One repairer can fix cars in an average time of 45 minutes. Two repairers take 30 minutes, and three take 20 minutes. While these cars are down, lost income is $40 per hour. Cars tend to break down at the rate of 1.00 per hour. Management is trying to decide how many repair persons to hire, and has asked you for cost data. a. What is the total hourly cost with one repair person? b. What is the total hourly cost with two repair persons? c. What is the total hourly cost with three repair persons?
During the campus Spring Fling, the bumper car amusement attraction has a problem of cars becoming disabled and in need of repair. Repair personnel can be hired at the rate of $15 per hour, but they only work as one team. Thus, if one person is hired, he or she works alone; two or three people work together on the same repair. One repairer can fix cars in an average time of 40 minutes. Two repairers take 30 minutes, and three take 20 minutes. While these cars are down, lost income is $30 per hour. Cars tend to break down at the rate of 1.10 per hour. Management is trying to decide how many repair persons to hire, and has asked you for cost data. a. What is the total hourly cost with one repair person? (Round your intermediate calculations and final answer to 2 decimal places.) b. What is the total hourly cost with two repair persons? (Round your intermediate calculations and final answer to 2 decimal places.) c. What is the total hourly cost with three repair persons? (Round your…

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