Recently, a new double progressive mean (DPM) control chart has been proposed in the literature of statistical process control. In the said proposal, an important term is missing in the variance expression of the DPM statistic that affects the detection ability of the proposed chart. In this study, we have derived and provided the correct version of the said variance along with its corresponding control limits. The run length profiles of the DPM chart are investigated, and the results are updated for the new version of the limits. Moreover, a sensitivity analysis between DPM and progressive mean charts based on the different choices of the design parameter is also included in this study. It is revealed that the revised version offers even more efficient outcomes than the previous ones. In addition, a real dataset application is also presented for practical considerations of the refined version.

中文翻译：

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渐进平均控制图的增强方法：讨论和比较分析

最近，在统计过程控制的文献中提出了一种新的双渐进均值（DPM）控制图。在上述建议中，DPM统计量的方差表达式中缺少一个重要术语，该术语会影响所建议图表的检测能力。在这项研究中，我们已经得出并提供了所述方差的正确版本及其相应的控制限制。研究了DPM图表的行程长度配置文件，并为新版本的限制更新了结果。此外，本研究还包括基于设计参数的不同选择的DPM与渐进均值图之间的敏感性分析。据透露，修订后的版本提供了比以前更有效的结果。此外，