A robust extension of the bivariate Birnbaum-Saunders distribution and associated inference

Authors:
Filidor Vilca;N. Balakrishnan;Camila Borelli Zeller
Affiliations:
-;-;-
Venue:
Journal of Multivariate Analysis
Year:
2014

Citing 12
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Abstract

We propose here a robust extension of the bivariate Birnbaum-Saunders (BS) distribution derived recently by Kundu et al. (2010). This extension is based on scale mixtures of normal (SMN) distributions that are used for modeling symmetric data. This type of bivariate Birnbaum-Saunders distribution based on SMN models is an absolutely continuous distribution whose marginals are of univariate Birnbaum-Saunders type. We then develop the EM-algorithm for the maximum likelihood (ML) estimation of the model parameters, and illustrate the obtained results with a real data and display the robustness feature of the estimation procedure developed here.