Enhanced cumulative sum charts for monitoring process dispersion.

The cumulative sum (CUSUM) control chart is widely used in industry for the detection of small and moderate shifts in process location and dispersion. For efficient monitoring of process variability, we present several CUSUM control charts for monitoring changes in standard deviation of a normal pro...

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Bibliographic Details
Main Authors: Mu'azu Ramat Abujiya, Muhammad Riaz, Muhammad Hisyam Lee
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4406612?pdf=render