Bayesian analysis of heterogeneous doubly censored lifetime data using the 3-component mixture of Rayleigh distributions: A Monte Carlo simulation study

Document Type : Research Article

Authors

1 Department of Statistics, Government College University, Faisalabad 38000, Pakistan

2 Department of Mathematics and Statistics, Riphah International University, Islamabad 44000, Pakistan.

3 Department of Statistics, Quaid-i-Azam University, Islamabad 44000, Pakistan.

4 Department of Statistics, Government College University, Faisalabad 38000, Pakistan.

Abstract

This article is about Bayesian estimation of parameters of a heterogeneous 3-component mixture of Rayleigh distributions (3-CMRD) generating a mixture data. Being the most popular and reasonable sampling scheme in reliability and survival analyses, the doubly censored sampling scheme is considered. The Bayes estimators and their posterior risks are derived under various situations. In addition, elicitation of hyperparameters is presented. Algebraic expressions for posterior predictive distribution and Bayesian predictive intervals are derived.  Assuming the informative and the non-informative priors, a comprehensive Monte Carlo simulation is conducted to examine the performance of the Bayes estimators under symmetric and asymmetric loss functions. Finally, to highlight the practical importance, the proposed 3-compnent mixture model is applied to a doubly censored lifetime data from a real life situation. It is observed that the analysis of doubly censored data in Bayesian framework, the SRIGP paired with SELF (DLF) is suitable choice for estimating mixing proportion (component) parameters.

Keywords

Main Subjects

References

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Scientia Iranica
Volume 26, Issue 3
Transactions on Industrial Engineering (E)
May and June 2019
Pages 1789-1808

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History

  • Receive Date: 02 November 2016
  • Revise Date: 18 October 2017
  • Accept Date: 23 June 2018

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