A COMPARISON OF SOME ROBUST BIVARIATE CONTROL CHARTS FOR INDIVIDUAL OBSERVATIONS

Autor:	Moustafa Omar Ahmed Abu - Shawiesh, Florence George, Kibria, Golam B. M.
Předmět:	Bivariate control chart Robust estimation lcsh:Management. Industrial management False Alarm lcsh:HD28-70 Hotelling's T2 statistic Outliers Statistical process control Simulation Study
Zdroj:	BASE-Bielefeld Academic Search Engine International Journal for Quality Research, Vol 8, Iss 2, Pp 183-196 (2014)
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:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7f66101e0dee18259af235615350f775 https://doaj.org/article/832f7e6f73514c07913dae08bbc87145 Zobrazit plný text záznamu