A COMPARISON OF SOME ROBUST BIVARIATE CONTROL CHARTS FOR INDIVIDUAL OBSERVATIONS

Autor:	Moustafa Omar Ahmed Abu - Shawiesh, Florence George, Golam B. M. Kibria
Jazyk:	angličtina
Rok vydání:	2014
Předmět:	Bivariate control chart False Alarm Hotelling's T2 statistic Outliers Robust estimation Simulation Study Statistical process control Management. Industrial management HD28-70
Zdroj:	International Journal for Quality Research, Vol 8, Iss 2, Pp 183-196 (2014)
Druh dokumentu:	article
ISSN:	1800-6450 1800-7473
Popis:	This paper proposed and considered some bivariate control charts to monitor individual observations from a statistical process control. Usual control charts which use mean and variance-covariance estimators are sensitive to outliers. We consider the following robust alternatives to the classical Hoteling's T2: T2MedMAD, T2MCD, T2MVE a simulation study has been conducted to compare the performance of these control charts. Two real life data are analyzed to illustrate the application of these robust alternatives.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/832f7e6f73514c07913dae08bbc87145 Zobrazit plný text záznamu View record in DOAJ