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International Journal of Production Research Volume 42, 2004 - Issue 12
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Original Articles

Weighted moving averages: an efficient plan for monitoring specific location shifts

Ross Sparks CSIRO Mathematical and Information Sciences, Locked Bag 17, North Ryde NSW1670, Australia E-mail: [email protected]
Pages 2521-2528 | Published online: 21 Feb 2007
 
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Abstract

Exponentially weighted moving averages (EWMA) or Cumulative sum (CUSUM) monitoring plans are used in industry for early detection of deviations from target for process measurements. This paper illustrates the advantage of using weighted moving averages (WMA) in this regard, particular when the size of the shift is known in advance. WMA plans are compared to the conventional CUSUM and the EWMA procedures using a simulation study.

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