A distribuição Gama Weibull Poisson aplicada a dados de sobrevivência
DOI:
https://doi.org/10.5540/tema.2014.015.02.0165Abstract
A família de distribuições univariadas gama-generalizada proposta por Zografos e Balakrishnan e Ristic e Balakrishnan foi discutida por Nadarajahet al. que deram um tratamento matemático amplo a esta classe. Neste artigo, estudamos o modelo Gama Weibull Poisson que tem como casos especiais váriasdistribuições discutidas na literatura. Deduzimos uma expressão explícita para aentropia de Rényi, e mostramos que a densidade da distribuição Gama WeibullPoisson é uma mistura de densidades da distribuição Weibull Poisson. Estudamosalgumas propriedades matemáticas importantes como momentos, função geratrizde momentos e função quantílica.References
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