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

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.

Preview

PDF Download (834kB) | Preview

Abstract

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.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Q Science > QA Mathematics > QA1-939 Mathematics
Divisions:	Pusat Pengajian Sains Matematik (School of Mathematical Sciences)
Depositing User:	ARKM Al Rashid Automasi
Date Deposited:	23 Jul 2009 07:25
Last Modified:	13 Jul 2013 04:41
URI:	http://eprints.usm.my/id/eprint/11395

Actions (login required)

View Item