Bayesian and non-Bayesian inference under adaptive type-II progressive censored sample with exponentiated power Lindley distribution

J Appl Stat. 2021 May 31;49(12):2981-3001. doi: 10.1080/02664763.2021.1931819. eCollection 2022.

Abstract

This paper deals with the statistical inference of the unknown parameters of three-parameter exponentiated power Lindley distribution under adaptive progressive type-II censored samples. The maximum likelihood estimator (MLE) cannot be expressed explicitly, hence approximate MLEs are conducted using the Newton-Raphson method. Bayesian estimation is studied and the Markov Chain Monte Carlo method is used for computing the Bayes estimation. For Bayesian estimation, we consider two loss functions, namely: squared error and linear exponential (LINEX) loss functions, furthermore, we perform asymptotic confidence intervals and the credible intervals for the unknown parameters. A comparison between Bayes estimation and the MLE is observed using simulation analysis and we perform an optimally criterion for some suggested censoring schemes by minimizing bias and mean square error for the point estimation of the parameters. Finally, a real data example is used for the illustration of the goodness of fit for this model.

Keywords: Bayesian estimation; Exponentiated power Lindley; Markov chain Monte Carlo; adaptive progressive type-II censoring; maximum likelihood estimator; simulation.

Grants and funding

The authors extend their appreciation to the Deanship of Scientific Research at Majmaah University for funding this work under project number No. RGP-2019-2.