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Exponentially weighted moving average control charts for three-level products

類別:期刊論文

學年 / 學期:97-2

出版日期:2009-06-05 00:00:00

著者:Tsai, Tzong-ru

單位:統計學系暨研究所

著錄名稱、卷期、頁數:Statistical Papers 52, p.419-429

摘要:In this paper, exponentially weighted moving average (EWMA) control charts for multinomial data are developed with a three-level classification scheme. The lower and upper control limits of the proposed EWMA control chart are evaluated using Markov chain approximation. Compared with the three-level Shewhart control chart, numerical results indicate that the proposed EWMA control chart is relatively sensitive to small shifts in a three-level multinomial process. A figure and a table are provided for practitioners to select the value of chart limit coefficient that gives the desired in-control average run length.

關鍵字:Average run length;EWMA control chart;Markov Chain;Quality value function;Shewhart control chart

語言:zh_TW

ISSN:1613-9798

期刊性質:國內

審稿制度:否

國別:TWN

出版型式:電子版