A Note on Run Length Variability Reduction for EWMA Charting

Govindaraju K. and Zhang Lingyun
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Govindaraju K.: Institute of Information Sciences and Technology, Massey University, Palmerston North, Wellington, New Zealand
Zhang Lingyun: Institute of Information Sciences and Technology, Massey University, Palmerston North, Wellington, New Zealand

Stochastics and Quality Control, 2006, vol. 21, issue 2, 171-181

Abstract: The reduction of run length variability has received little attention in the statistical process control literature. This note proposes a modification of the signal rule for the EWMA control chart resulting in a reasonable reduction of run length variability.

Keywords: Average Run Length; EWMA Chart; Process Control; Run Length Variability (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1515/EQC.2006.171

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