Principles Of Operations Management
11th Edition
ISBN: 9780135173930
Author: RENDER, Barry, HEIZER, Jay, Munson, Chuck
Publisher: Pearson,
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Chapter 17, Problem 2P
Summary Introduction
To determine: The overall reliability of the whole testing process.
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While the alpha of Cronbach is mostly used to assess the reliability of results, researchers are increasingly looking for alternatives because of a series of process defects. Alpha Cronbach in its reliability assessment, since the former has an enhanced uncertainty estimate shared by the respective activities and uses object loads gathered within the factor structure. Explain the Cronbach’s Alpha measurement and its internal consistency?
If the test/retest reliability of a measure is .80, it means
The measure meets typical reliability standards.
The measure should be revised to get closer to 100% reliability
The measure is actually unreliable and should be discarded
The measure likely has good construct validity
Explain why a product or system might have an overall reliability that is low even though it is com- prised of components that have fairly high reliabilities.
Chapter 17 Solutions
Principles Of Operations Management
Ch. 17 - Prob. 1EDCh. 17 - Prob. 1DQCh. 17 - Prob. 2DQCh. 17 - Prob. 3DQCh. 17 - Prob. 4DQCh. 17 - What is the trade-off between operator-performed...Ch. 17 - Prob. 6DQCh. 17 - Prob. 7DQCh. 17 - Prob. 8DQCh. 17 - Prob. 9DQ
Ch. 17 - Prob. 10DQCh. 17 - Prob. 1PCh. 17 - Prob. 2PCh. 17 - Prob. 3PCh. 17 - Prob. 4PCh. 17 - Prob. 5PCh. 17 - Prob. 6PCh. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Prob. 9PCh. 17 - What is the reliability of the system shown?Ch. 17 - Prob. 11PCh. 17 - Prob. 12PCh. 17 - Rick Wing, salesperson for Wave Soldering Systems,...Ch. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - What are the expected number of yearly breakdowns...Ch. 17 - Prob. 19PCh. 17 - Prob. 20PCh. 17 - Prob. 21PCh. 17 - Prob. 22PCh. 17 - Prob. 1VCCh. 17 - Prob. 2VCCh. 17 - Prob. 3VC
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- A serial system is assembled in house from 20 parts. To be successful in the marketplace the system has to have three sigma reliability. What level of reliability of each part is necessary to achieve that level of the overall performance?arrow_forwardA bank loan processing system has three components withindividual reliabilities as shown:R1 = 0.90 ---> R2 = 0.89 ---> R3 = 0.95What is the reliability of the bank loan processing system?arrow_forwardYou have a system composed of a serial connection of four components with the following reliabilities: What is the reliability of the system?arrow_forward
- XYZ Company Ltd a cosmetic production firm is having challenges with its products on the market. Consumers of the product on countless occasions had complained about the low quality of the products and its side effects after using it. XYZ Company Ltd has contacted you- a reliability consultant to assist the company in addressing the challenges. (b)What will be your recommendation?arrow_forwardYou have conducted a zone of tolerance analysis for your local pizzarestaurant. You find that the lengths of the reliability andresponsiveness boxes are much greater than those of the other threeservice quality dimensions. You also find that the restaurant ispositioned above the zone box on reliability but below the box onresponsiveness. What should you tell the manager to do?arrow_forwardA medical control system has three components inseries with individual reliabilities (R1, R2, R3) as shown: What is the reliability of the system?arrow_forward
- What is the difference between UAT (User Acceptance Testing) and System testing?arrow_forwardA product is composed of a series connection of four components with the following reliabilities. What is the reliability of the system? Component 1 2 3 4 Reliability .90 .95 .97 .88 A system has four components in a series. What is the reliability of the system? Component 1 2 3 4 Reliability .90 .95 .90 .99arrow_forward15) Given this three-component system and associated reliabilities What is the system reliability? Group of answer choices a) 0.4772 b) 0.0068 c) 0.5228 d) 0.9225 e) 0.9933arrow_forward
- The reliability dimension of quality relates to the useful life of a good or service. True Falsearrow_forwardConsider a system consisting of 3 identical units connectedin parallel. The unit reliability factor is 0.90. If the unitfailures are independent of one an other and if thesuccessful operation of the system depends on thesatisfactory performance of any one unit.Quality Management - determine system reliabilityarrow_forwardMagTech assembles tape players from four major compo-nents arranged as follows:The components can be purchased from three differentvendors, who have supplied the following reliability data:a. If MagTech has decided to use only one vendor tosupply all four components, which vendor should beselected?b. Would your decision change if all the components wereassembled in series?arrow_forward
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