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Chapter 2: PROBLEM 10.5OQ (page 253)
Question: What is the most commonly used priority rule for setting queue discipline, likely because it is seen as the fairest?
Answer
Line teaching is the need to run the show, or rules, for deciding the benefit to clients in a holding up the line.
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A graphics reproduction firm has four automatic equipment units but occasionally becomes inoperative because of the need for supplies, maintenance, or repair. Each Unit requires service roughly twice each hour, or, more precisely, each Unit of equipment runs an average of 30 minutes before needing service. Service times vary widely, ranging from a simple service (such as pressing a restart switch or repositioning paper) to more detailed equipment disassembly. The average service time, however, is minutes. Equipment downtime results in a loss of \(20 per hour. The one equipment attendant is Paid \)6 per hour.
Using finite queuing analysis, answer the following questions:
B. What is the average number of units still in operation?
A graphics reproduction firm has four automatic equipment units but occasionally becomes inoperative because of the need for supplies, maintenance, or repair. Each Unit requires service roughly twice each hour, or, more precisely, each Unit of equipment runs an average of 30 minutes before needing service. Service times vary widely, ranging from a simple service (such as pressing a restart switch or repositioning paper) to more detailed equipment disassembly. The average service time, however, is minutes. Equipment downtime results in a loss of \(20 per hour. The one equipment attendant is Paid \)6 per hour.
Using finite queuing analysis, answer the following questions:
C. What is the average number of units being serviced?
What is the difference between McDonald鈥檚 old and current processes?
Question: Flowcharts are a common process design and analysis tool used in both manufacturing and services. What is a key feature on flowcharts used in service operations that differentiates between the front-office and back-office aspects of the system?
A toll tunnel has decided to experiment with the use of a debit card for the collection of tolls. Initially, only one lane will be used. Cars are estimated to arrive at this experimental lane at the rate of 750 per hour. It will take exactly four seconds to verify the debit card.
b.How many cars would you expect to see in the system?
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