An EWMA Control Chart for Monitoring the Mean of Skewed Populations Using Weighted Variance.

This paper discusses the use of weighted variance (wv) in setting up the limits of the exponentially weighted moving average (EWMA) chart for the monitoring of the mean of a process from a skewed population. This chart, called the WV-EWMA chart hereafter, reduces to the standard EWMA chart when...

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Main Authors: Khoo, Michael B. C., Atta, Abdu M. A.
Format: Conference or Workshop Item
Language:English
Published: 2008
Subjects:
Online Access:http://eprints.usm.my/11395/
http://eprints.usm.my/11395/1/An_EWMA_Control_Chart_For_Monitoring_The_Mean.pdf
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author Khoo, Michael B. C.
Atta, Abdu M. A.
author_facet Khoo, Michael B. C.
Atta, Abdu M. A.
author_sort Khoo, Michael B. C.
building USM Institutional Repository
collection Online Access
description This paper discusses the use of weighted variance (wv) in setting up the limits of the exponentially weighted moving average (EWMA) chart for the monitoring of the mean of a process from a skewed population. This chart, called the WV-EWMA chart hereafter, reduces to the standard EWMA chart when the underlying distribution is symmetric.
first_indexed 2025-11-15T15:36:48Z
format Conference or Workshop Item
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institution Universiti Sains Malaysia
institution_category Local University
language English
last_indexed 2025-11-15T15:36:48Z
publishDate 2008
recordtype eprints
repository_type Digital Repository
spelling usm-113952013-07-13T04:41:11Z http://eprints.usm.my/11395/ An EWMA Control Chart for Monitoring the Mean of Skewed Populations Using Weighted Variance. Khoo, Michael B. C. Atta, Abdu M. A. QA1-939 Mathematics This paper discusses the use of weighted variance (wv) in setting up the limits of the exponentially weighted moving average (EWMA) chart for the monitoring of the mean of a process from a skewed population. This chart, called the WV-EWMA chart hereafter, reduces to the standard EWMA chart when the underlying distribution is symmetric. 2008-12 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.usm.my/11395/1/An_EWMA_Control_Chart_For_Monitoring_The_Mean.pdf Khoo, Michael B. C. and Atta, Abdu M. A. (2008) An EWMA Control Chart for Monitoring the Mean of Skewed Populations Using Weighted Variance. In: Proceedings of the 2008 IEEE IEEM, 8-11 December 2008, Singapore.
spellingShingle QA1-939 Mathematics
Khoo, Michael B. C.
Atta, Abdu M. A.
An EWMA Control Chart for Monitoring the Mean of Skewed Populations Using Weighted Variance.
title An EWMA Control Chart for Monitoring the Mean of Skewed Populations Using Weighted Variance.
title_full An EWMA Control Chart for Monitoring the Mean of Skewed Populations Using Weighted Variance.
title_fullStr An EWMA Control Chart for Monitoring the Mean of Skewed Populations Using Weighted Variance.
title_full_unstemmed An EWMA Control Chart for Monitoring the Mean of Skewed Populations Using Weighted Variance.
title_short An EWMA Control Chart for Monitoring the Mean of Skewed Populations Using Weighted Variance.
title_sort ewma control chart for monitoring the mean of skewed populations using weighted variance.
topic QA1-939 Mathematics
url http://eprints.usm.my/11395/
http://eprints.usm.my/11395/1/An_EWMA_Control_Chart_For_Monitoring_The_Mean.pdf