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Bayesian inference of the inverse Weibull mixture distribution using type-I censoring

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  • Farzana Noor
  • Muhammad Aslam

Abstract

A large number of models have been derived from the two-parameter Weibull distribution including the inverse Weibull (IW) model which is found suitable for modeling the complex failure data set. In this paper, we present the Bayesian inference for the mixture of two IW models. For this purpose, the Bayes estimates of the parameters of the mixture model along with their posterior risks using informative as well as the non-informative prior are obtained. These estimates have been attained considering two cases: (a) when the shape parameter is known and (b) when all parameters are unknown. For the former case, Bayes estimates are obtained under three loss functions while for the latter case only the squared error loss function is used. Simulation study is carried out in order to explore numerical aspects of the proposed Bayes estimators. A real-life data set is also presented for both cases, and parameters obtained under case when shape parameter is known are tested through testing of hypothesis procedure.

Suggested Citation

  • Farzana Noor & Muhammad Aslam, 2013. "Bayesian inference of the inverse Weibull mixture distribution using type-I censoring," Journal of Applied Statistics, Taylor & Francis Journals, vol. 40(5), pages 1076-1089.
    • Handle: RePEc:taf:japsta:v:40:y:2013:i:5:p:1076-1089
    DOI: 10.1080/02664763.2013.780157
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