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Estimation of Process Capability Index Using Confidence Intervals of Process ParametersBy Sai Sarada Vedururu, M. Subbarayudu, K.V.S. Sarma
Abstract: The conventional process capability index (PCI) is a measure of process performance whose value depends on the process mean (), standard deviation () and the specified tolerance. The point estimates of and are used to estimate the PCI. In this paper, a new PCI is proposed by utilizing the 100(1-)% Confidence Intervals (CI) for both and . This has led to nine possible estimates of PCI which …
Published in Research & Reviews : Journal of Statistics · Vol. 7, Issue 3, 2018 · pp. 49–57 Read article →