Optimal Exponentially Weighted Moving Average Of T2 Chart (#187)
Read ArticleDate of Conference
July 19-21, 2023
Published In
"Leadership in Education and Innovation in Engineering in the Framework of Global Transformations: Integration and Alliances for Integral Development"
Location of Conference
Buenos Aires
Authors
García-Bustos, Sandra
Naranjo, Christian
Alvarez, Illych
Ruiz-Barzola, Omar
Mera-Intriago, Eva
Abstract
We propose a chart for normal variables that uses a statistic that is a recursive form of Hotelling’s T2 statistic. The objective of this study is to improve the performance of the T2 chart. To analyse the performance of this chart, we have developed a user-friendly program that finds the best parameters through Genetic Algorithms. This algorithm minimises the out-of-control ARL (Average Run Length) for a proposed shift in the mean vector under the restriction of a desired in-control ARL value. The proposed control chart shows better performance than the Hotelling T2 chart.