ESTIMATION OF PROCESS CAPABILITY IN BAYESIAN PARADIGM

The process capability index (PCI), ???????????????? examines the capability of control charts. Bayesian techniques to estimate ???????????????? are desirable when prior information about a process characteristic is available. In this paper, an estimator of ???????????????? under normality with process variance having conjugate prior in Bayesian scenario is proposed. Its performance is studied and compared with Bayesian estimator developed by Cheng and Spiring (1989) An illustrative example is provided.