Kajian Indeks Keupayaan Proses Bagi Taburan Taknormal

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Date
1998-12
Authors
Yet Kang, Cha
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Abstract
In today's challenging world, quality management is a very important factor in satisfying customers' requirements, maintain the competitive edge and market share. In order to improve the quality of products, the variation between unit to unit and the variation from the target need to be reduced besides requiring the units to meet the specifications. Kane (1996) has discussed the process capability indices, Cp, Cph Cpu and Cpk to measure the performance of a process in order to meet the target and low variation. These indices will be used as tools to measure the performance of a process if the prerequisites are met. Normally, the prerequisites are not commonly met in the real world, and this will lead to the misinterpretation of these indices. Many statisticians have studied these effects. This thesis is divided into two parts. Part I introduces the process capability indices and some studies about these indices under non-normality. Part II covers our study regarding the method of Cp computation which is recommended by Philippe Castagliola ( 1996).
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Mathematics , Process control -- Statistical methods
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