Application of the Minimax Control Chartfor multivariate manufacturing process
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 4, Issue 3
Abstract
Process problems can be identified using unnatural control chart patterns (CCPs). Multivariate process control can detect an out-of-control for a variable or group of variables that have caused the out-of-control signal. One of this charts are Minimax control charts. In this research, a performance analysis of three different Minimax control charts is performed with respect to their Chi- Square control chart counterparts. We define each unique control chart by a unique combination of quality characteristic mean vector and associated covariance matrix. To evaluate our approach, we compare the result of the Chi- Square and Minimax charts under different values of the sample size, the probability of a Type I error, and selected shifts. The result shows our proposed approach can improve the result.
Authors and Affiliations
Mohammad Hasan Balali| Department of industrial engineering, KhajehNasir University of Technology, Tehran, Iran, Narjes Nouri| Department of industrial engineering, KhajehNasir University of Technology, Tehran, Iran,narjesnourii@gmail.com, Erfan Pakdamanian| Department of industrial engineering, Islamic Azad University, Tehran branch, Tehran, Iran
Keywords
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