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Seminário do
Grupo de Inferência Bayesiana (GIB)
05/09/2008-14
horas
Sala de
seminários do Departamento de Estatística- UFSCar-São
Carlos-SP
Título:
Parallel systems using the Weibull model
A. Polpo (UFSCar, São Carlos, Brazil) M.A. Coque Jr. (IME-USP, São Paulo, Brazil) and C.A. de B. Pereira (IME-USP, São Paulo, Brazil) Abstract. A series system reliability is based on the minimum life time of its components. Its dual, the parallel system, is based on the maximum. Here, we consider the statistical analysis of a parallel system where its components follow the Weibull parametric model. Our perspective is Bayesian. Due to the mathematical complexity to obtain the posterior distribution, we use the Metropolis- Hasting simulation method. Based on this posterior, we evaluated the evidence of the Full Bayesian Significance Test ?FBST? for comparing the component reliabilities. The reason for using FBST is the fact that we are testing precise hypotheses. An example illustrates the methodology. |