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Two New Mixture Models Related to the Inverse Gaussian Distribution

  • Samuel Kotz
  • Víctor Leiva
  • Antonio Sanhueza
Article

Abstract

This article presents a new family of logarithmic distributions to be called the sinh mixture inverse Gaussian model and its associated life distribution referred as the extended mixture inverse Gaussian model. Specifically, the density, distribution function, and moments are developed for the sinh mixture inverse Gaussian distribution. Next, the extended mixture inverse Gaussian distribution is characterized. A graphical analysis of the densities of the new models is also provided. In addition, a lifetime analysis is presented for the extended mixture inverse Gaussian distribution. Finally, an example with a real data set is given to illustrate the methodology, which indicates that the new models result in a better fit to the data than some other well-known distributions.

Keywords

Birnbaum-Saunders distribution Goodness-of-fit Likelihood methods Moments Sinh-normal distribution 

AMS 2000 Subject Classifications

Primary 60E05; Secondary 62N05 

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Copyright information

© Springer Science+Business Media, LLC 2003

Authors and Affiliations

  1. 1.Department of Engineering Management and Systems EngineeringThe George Washington UniversityWashingtonUSA
  2. 2.Departamento de EstadísticaUniversidad de ValparaísoValparaísoChile
  3. 3.Departamento de Matematica y EstadísticaUniversidad de La FronteraTemucoChile

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