Reliability analysis under constant-stress partially accelerated life tests using hybrid censored data from Weibull distribution

Authors : Ali A ISMAİL

Pages : 181-193

View : 51 | Download : 10

Publication Date : 2016-02-01

Article Type : Research Paper

Abstract :This article discusses the estimation of Weibull distribution parameters based on hybrid censored data under constant-stress partially accelerated test model. Two estimation methods; maximum likelihood insert ignore into journalissuearticles values(ML); and percentile bootstrap insert ignore into journalissuearticles values(PB); are used to make statistical inference on the Weibull distribution parameters and the acceleration factor. The mean square errors of the estimators are calculated to evaluate their performances through a Monte Carlo simulation study. Moreover, the confidence intervals lengths insert ignore into journalissuearticles values(CILs); and their associated coverage probabilities insert ignore into journalissuearticles values(CPs); are obtained. Finally, to demonstrate the proposed methodology, an arithmetic example is given.
Keywords : percentile bootstrap, confidence interval, coverage rate, hybrid censoring, Statistics, reliability

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