A new double EWMA-t chart with auxiliary information for the process mean

被引：5
|
作者：
Haq, Abdul [1 ]
Ejaz, Sana [1 ]
Lee, Ming Ha [2 ]
Khan, Manzoor [1 ]
机构：
[1] Quaid I Azam Univ, Dept Stat, Islamabad 45320, Pakistan
[2] Swinburne Univ Technol, Fac Engn Comp & Sci, Sarawak Campus, Sarawak, Malaysia
来源：
QUALITY AND RELIABILITY ENGINEERING INTERNATIONAL | 2021年 / 37卷 / 08期
关键词：
auxiliary information; average run length; DEWMA and EWMA charts; fixed and variable sampling intervals; Monte Carlo simulation; process mean; statistical process control; WEIGHTED MOVING AVERAGE; EFFICIENT;
D O I：
10.1002/qre.2923
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we propose an auxiliary-information-based (AIB) double EWMA-t (AIB-DEWMA-t) chart for monitoring the process mean. The DEWMA-t chart encompasses the EWMA-t and AIB-EWMA-t charts. The Monte Carlo simulations are used to compute the run length characteristics of the AIB-DEWMA-t chart. Based on detailed run length comparisons, it is found that the AIB-DEWMA-t chart may uniformly and substantially outperform the AIB-EWMA-t chart when detecting different shifts in the process mean. In addition, the AIB-DEWMA-t chart is uniformly more sensitive than the DEWMA-t chart. Similar trends are observed when comparing these control charts with the variable sampling interval feature. A real dataset is also considered to demonstrate the implementation of the proposed chart.
引用
收藏
页码：3381 / 3394
页数：14
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