Bayesian analysis for lognormal distribution under progressive Type-II censoring

Year 2019, Volume: 48 Issue: 5, 1488 - 1504, 08.10.2019

Sukhdev Singh Yogesh Mani Tripathi , Shuo-jye Wu

Abstract

In this paper, we consider the problems of Bayesian estimation and prediction for lognormal distribution under progressive Type-II censored data. We propose various non-informative and informative priors for the unknown lognormal parameters and compute the Bayes estimates under squared error loss function. Importance sampling technique and OpenBUGS are taken into consideration for the computational purpose. Further, we predict lifetimes of both censored and future samples under one- and two-sample prediction frameworks. We also compute the corresponding Bayes predictive bounds. A simulation study is conducted to compare the performance of proposed estimates and a real data set is analyzed to illustrate applications of this study. Finally, a conclusion is presented.

Keywords

equal-tail interval, highest posterior density interval, one-sample prediction, OpenBUGS, two-sample prediction, importance sampling

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