政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/139856

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政大機構典藏 > 商學院 > 統計學系 > 期刊論文 > Item 140.119/139856

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題名:	Monitoring process location and dispersion simultaneously using a control region
作者:	楊素芬;陳立榜 Yang, Su-Fen Chen, Li-Pang Muzayyanah, Syamsiyatu Wang, Bin Jiang, Ting-An Gan, Shengjin
貢獻者:	統計系
日期:	2022-01
上傳時間:	2022-04-12
摘要:	Control charts are effective tools for detecting out-of-control conditions of process parameters in manufacturing and service industries. The development of distribution-free control charts is important in statistical process control when the process quality variable follows an unknown or a non-normal distribution. This research thus proposes to use a distribution-free technology to establish a new control region based on the exponentially weighted moving average median statistic and exponentially weighted moving average interquartile range statistic for simultaneously monitoring the process location and dispersion and further sets up a corresponding new control chart. We compute the out-ofcontrol average run length to evaluate out-of-control detection performance of the proposed control region and also compare the proposed control region with some existing location and dispersion control charts. Results show that our proposed chart always exhibits superior detection performance when the shifts in process location and/or dispersion are small or moderate. The new control region is thus recommended.
關聯:	DYNA, 97(1), 71-78
資料類型:	article
DOI 連結:	https://doi.org/10.6036/10115
DOI:	10.6036/10115
顯示於類別:	[統計學系] 期刊論文

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