Constant-Stress Partially Accelerated Life Testing for Weibull Inverted Exponential Distribution with Censored Data

Abstract

The novelty of this article is estimating the parameters of Weibull inverted exponential (WIE) distribution with a constant stress partially accelerated life test (PALT) under adaptive type-II progressively censored samples. Moreover, the maximum likelihood estimators (MLEs), their asymptotic variances confidence intervals, and Bayes estimators (BEs) of the model parameters and the acceleration factor are obtained. Furthermore, the approximate bootstrap and credible confidence intervals of the estimators are acquired. The accuracy of the MLEs and BEs for the model parameters and the acceleration factor is investigated through the simulation studies.

Keywords

• Partially accelerated life tests; Constant stress; Adaptive type-II progressively censoring; Weibull inverted exponential; Bayesian approach; bootstrap confidence interval, simulation study.