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The economic design of Shewhart control chart : a sensitivity study of X-bar control chart under Weibull shock model and variable control limits

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dc.contributor.advisor Marcellus, Richard L. en_US
dc.contributor.author Chieh, Kohsin en_US
dc.date.accessioned 2016-01-14T21:05:54Z
dc.date.available 2016-01-14T21:05:54Z
dc.date.issued 1996
dc.identifier.uri http://commons.lib.niu.edu/handle/10843/14912
dc.description Includes bibliographical references (pages [29]-30) en_US
dc.description.abstract One of the most typically used economic designs of control chart models is the standard Shewhart control chart model. Understanding the policies of the Shewhart control chart model is necessary before a sensitivity analysis of control chart cost model can be made. This thesis compares the performance of the standard Shewhart control chart model with that of a modified Shewhart control chart model with non-fixed control limits. In both cases, the occurrence time of the assignable cause is assumed to have a Weibull distribution. The formulation and the procedure for the design of the two models is examined. Following the theoretical development, both mathematical and numerical analyses are performed to validate the modified model. Finally, numerical results generated from experimental tests show the relative performance of the two models. The results of the numerical study indicate that a modified model can be more efficient in loss-cost reduction than standard model, based on a certain cost criterion. en_US
dc.format.extent 44 pages en_US
dc.language.iso eng en_US
dc.publisher Northern Illinois University en_US
dc.rights NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors. en_US
dc.subject.lcsh Quality control--Charts, diagrams, etc en_US
dc.title The economic design of Shewhart control chart : a sensitivity study of X-bar control chart under Weibull shock model and variable control limits en_US
dc.type.genre Dissertation/Thesis en_US
dc.type Text en_US
dc.contributor.department Department of Industrial Engineering en_US
dc.description.degree M.S. (Master of Science) en_US


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