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Abstract: The most popular tool used in the industry for monitoring a process is theShewhart control chart. The major disadvantage of the Shewhart control chart isthat it is not very efficient in detecting small process average shifts. Toincrease the sensitivity of Shewhart control charts to small shifts additionalsupplementary runs rules has been suggested. In this paper we introduce andstudy the modified r-m control chart which has an improved sensitivity to smalland moderate process average shifts as compared with the standard ShewhartX-bar control chart and corresponding control charts proposed recently in theliterature.



Autor: Demetrios L. Antzoulakos, Athanasios C. Rakitzis

Fuente: https://arxiv.org/







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