Chapter 2: Q3PE. (page 293)
This is when one or more activities stop because of a lack of work.
A shortage of work occurs when an individual does not work forty hours a week.
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What are the Three Ts relevant to poka-yokes in service systems?
Can the assembly line produce 300 units per day without using overtime?
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
Using finite queuing analysis, answer the following questions:
C. What is the average number of units being serviced?
State in your own words what Little’s law means. Describe an example that you have observed where Little’s law applies.
Benny the Barber owns a one-chair shop. At Barber College, they told Benny that his customers would exhibit a Poisson arrival distribution and that he would provide an exponential service distribution. His market survey data indicate that customers arrive at the rate of two per hour. It will take Benny an average of 20 minutes to give a haircut. Based on these figures, find the following:
b. The average time a customer waits.
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