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Ageing and stochastic comparisons for a covariate failure model
Published online by Cambridge University Press: 14 July 2016
Abstract
Ebrahimi (2001) proposes an interesting model for assessing a system's reliability, expressing the failure time of the system in terms of a deterioration process and covariates. He also provides illustrative examples and gives some properties of the model. In this note, we give conditions for negative ageing of the system's lifetime, and we correct one of his statements. Moreover, for the lifetimes of two systems of the same kind, some stochastic comparisons are presented.
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- Copyright © Applied Probability Trust 2002
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