New EWMA S-2 control charts for monitoring of process dispersion
The Exponentially Weighted Moving Average (EWMA) control chart is an effective tool for the detection of small shifts in the process variability. This research studied the properties of EWMA charts based on unbiased sample variance, S-2, for monitoring of changes in the process dispersion. However,...
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| Main Authors: | , , |
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| Format: | Article |
| Published: |
Elsevier
2017
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/80057/ http://dx.doi.org/10.24200/sci.2017.4041 |
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