Comparing Robustness of EWMA Dispersion Control Chart for Non-Normal Process

Hai Yu Wang

doi:10.4028/www.scientific.net/AMR.912-914.1189

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 912-914Comparing Robustness of EWMA Dispersion Control...

Comparing Robustness of EWMA Dispersion Control Chart for Non-Normal Process

Abstract:

This article discusses robustness to non-normality of EWMA charts for dispersion. Comparison analysis of run length of four kinds of EWMA charts to monitoring process dispersion is provided to evaluate control charts performance and robustness. At last robust EWMA dispersion charts for non-normal processes are proposed by this way.

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Periodical:

Advanced Materials Research (Volumes 912-914)

Pages:

1189-1192

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.912-914.1189

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Online since:

April 2014

Authors:

Hai Yu Wang*

Keywords:

Average Run Length, EWMA Chart, Robustness

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