Equivariant estimation for the parameters of location-scale multivariate exponential models and its application in reliability analysis

B. Chandrasekar and S. Amala Revathy

Communications in Statistics - Theory and Methods, 2016, vol. 45, issue 18, 5550-5559

Abstract: By considering an absolutely continuous location-scale multivariate exponential model (Weier and Basu, 1980), we obtain minimum risk equivariant estimator(s) of the parameter(s). Given a location-scale multivariate exponential random vector, it is shown that the normalized spacings associated with the random vector are independent standard exponential. The distribution of the complete sufficient statistic is derived. We derive the performance measures of standby, parallel, and series systems and also obtain the minimum risk equivariant estimator of the mean time before failure of the three systems. Some of the results of this article are extensions of those of Chandrasekar and Sajesh (2010).

Date: 2016
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DOI: 10.1080/03610926.2014.948195

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