Dependent Right Censorship in the MOMW Distribution

Nasser Davarzani, Ahmad Parsian and Ralf Peeters

Communications in Statistics - Theory and Methods, 2015, vol. 44, issue 11, 2222-2242

Abstract: In this paper, we consider paired survival data, in which pair members are subject to the same right censoring time, but they are dependent on each other. Assuming the Marshall–Olkin Multivariate Weibull distribution for the joint distribution of the lifetimes (X1, X2) and the censoring time X3, we derive the joint density of the actual observed data and obtain maximum likelihood estimators, Bayes estimators and posterior regret Gamma minimax estimators of the unknown parameters under squared error loss and weighted squared error loss functions. We compare the performances of the maximum likelihood estimators and Bayes estimators numerically in terms of biases and estimated Mean Squared Error Loss.

Date: 2015
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DOI: 10.1080/03610926.2013.766342

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