SPC for Quality and Risk
Xia Pan
Broschiertes Buch

SPC for Quality and Risk

Monitoring Processes with Cross-Sectional and Serial Interdependence, and Higher Moments

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This study attempts to improve the statistical process control (SPC) methods and introduce SPC methods into risk control. Several contributions were made in this study. A correct bias correction coefficient with unequal sample sizes for Shewhart chart was given. The concordance of Shewhart mean and variability pair charts was suggested. Box-Ramerez Cuscore chart was extended to monitor coefficients of ARMA residuals. Vector autoregressive (VAR) chart was studied in details. Vector moving average (VMA) chart with EWMA on processes was proposed. Numerical analysis with integral equation for aver...