Control charts for process average and variability based on linguistic data. (English) Zbl 0769.62076

Summary: J. H. Wang and T. Raz [Int. Indust. Eng. Conf. Proc., Orlando/Fl., 30-35 (1988), Int. J. Prod. Res. 28, 477-487 (1990)] presented a generic approach for constructing attributes control charts using linguistic data to control the process average. We propose new linguistic control charts for process average and process variability based on the estimation of probability distributions existing behind the linguistic data.


62P30 Applications of statistics in engineering and industry; control charts
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