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    题名: Exponentially weighted moving average control charts for three-level products
    作者: Tsai, Tzong-Ru;Yen, W-P
    贡献者: 統計學系暨研究所
    关键词: Average run length;EWMA control chart;Markov Chain;Quality value function;Shewhart control chart
    日期: 2011-05-01
    上传时间: 2014-08-04 15:51:50 (UTC+8)
    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.
    關聯: Statistical Papers
    DOI: 10.1007/s00362-009-0239-3
    显示于类别:[統計學系暨研究所] 期刊論文

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