A Multivariate Process Variability Monitoring Based on Individual Observations
- Maman Djauhari
AbstractIn order to have a better understanding whether or not an additional observation has changed the covariance structure, a new statistic will be introduced. Under normality assumption, its asymptotic distribution will be presented and for practical purpose a chi-square approximation will be discussed. An industrial application in monitoring process variability will be presented to illustrate its advantage.
This work is licensed under a Creative Commons Attribution 4.0 License.
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