Monitoring the Mean Vector and the Covariance Matrix of Bivariate Processes
This paper proposes the joint use of two charts based on the non-central chi-square statistic (NCS statistic) for monitoring the mean vector and the covariance matrix of bivariate processes, named as the joint NCS charts. The expression to compute the ARL, which is defined as the average number of s...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
Associação Brasileira de Engenharia de Produção (ABEPRO)
2010-02-01
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Series: | Brazilian Journal of Operations & Production Management |
Online Access: | http://abepro.org.br/bjopm/index.php/bjopm/article/view/11 |