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The effectiveness of MEWMA control chart with mild correlation

Since it is undeniable that whenever conventional control charts are used there is the implied presumption that this observations tend to be independently as well as identically distributed with time. However, in reality, this kind of observations generated through continuous as well as discrete pro...

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Main Authors: Farouk, Abbas Umar, Mohamad, Ismail, Abdulhameed M., Gazali
Format: Article
Published: 2013
Subjects:
Q Science
Online Access:http://eprints.utm.my/id/eprint/40888/
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spelling my.utm.408882017-08-16T08:23:43Z http://eprints.utm.my/id/eprint/40888/ The effectiveness of MEWMA control chart with mild correlation Farouk, Abbas Umar Mohamad, Ismail Abdulhameed M., Gazali Q Science Since it is undeniable that whenever conventional control charts are used there is the implied presumption that this observations tend to be independently as well as identically distributed with time. However, in reality, this kind of observations generated through continuous as well as discrete production procedures tend to be serially correlated, which violates the independence assumption of conventional control charts in addition to affect the performance of control charts negatively. In this paper, we investigate the performance of MEWMA control chart with autocorrelated data with mild correlation being controlled. The generated data were applied to MEWMA control chart procedure and showed an in-control state, while the generated observations were subjected to normality tests from the assumptions and sensitivities for departure to normality, and turned out to be normal by all standard. Hence, this gives an alternative for the quality practitioners to adopt for the continuous and discrete production processes also the autocorrelation has no effect on the performance of MEWMA control limits when the mild correlation has been controlled. 2013 Article PeerReviewed Farouk, Abbas Umar and Mohamad, Ismail and Abdulhameed M., Gazali (2013) The effectiveness of MEWMA control chart with mild correlation. Australian Journal of Basic and Applied Sciences, 7 (11). pp. 232-237. ISSN 1991-8178
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic Q Science
spellingShingle Q Science
Farouk, Abbas Umar
Mohamad, Ismail
Abdulhameed M., Gazali
The effectiveness of MEWMA control chart with mild correlation
description Since it is undeniable that whenever conventional control charts are used there is the implied presumption that this observations tend to be independently as well as identically distributed with time. However, in reality, this kind of observations generated through continuous as well as discrete production procedures tend to be serially correlated, which violates the independence assumption of conventional control charts in addition to affect the performance of control charts negatively. In this paper, we investigate the performance of MEWMA control chart with autocorrelated data with mild correlation being controlled. The generated data were applied to MEWMA control chart procedure and showed an in-control state, while the generated observations were subjected to normality tests from the assumptions and sensitivities for departure to normality, and turned out to be normal by all standard. Hence, this gives an alternative for the quality practitioners to adopt for the continuous and discrete production processes also the autocorrelation has no effect on the performance of MEWMA control limits when the mild correlation has been controlled.
format Article
author Farouk, Abbas Umar
Mohamad, Ismail
Abdulhameed M., Gazali
author_facet Farouk, Abbas Umar
Mohamad, Ismail
Abdulhameed M., Gazali
author_sort Farouk, Abbas Umar
title The effectiveness of MEWMA control chart with mild correlation
title_short The effectiveness of MEWMA control chart with mild correlation
title_full The effectiveness of MEWMA control chart with mild correlation
title_fullStr The effectiveness of MEWMA control chart with mild correlation
title_full_unstemmed The effectiveness of MEWMA control chart with mild correlation
title_sort effectiveness of mewma control chart with mild correlation
publishDate 2013
url http://eprints.utm.my/id/eprint/40888/
_version_ 1643650585398870016
score 13.211869

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