A length-biased version of the Birnbaum-Saunders distribution with application in water quality

VICTOR ELISEO LEIVA SANCHEZ, Antonio Sanhueza, José M. Angulo

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

In this article, we develop a new model based on the Birnbaum-Saunders distribution that results to be both useful and practical for environmental sciences. The density, distribution and hazard functions, moments and properties of this new model are presented. A graphical analysis of the density is also provided. Furthermore, we estimate parameters, propose asymptotic inference and discuss influence diagnostics by using likelihood methods for the new distribution. An illustrative example with real data related to water quality indicates the adequacy on the new distribution.

Original languageEnglish
Pages (from-to)299-307
Number of pages9
JournalStochastic Environmental Research and Risk Assessment
Volume23
Issue number3
DOIs
StatePublished - 1 Jan 2009

Keywords

  • Diagnostics
  • Likelihood methods
  • Skewed distributions
  • Water quality

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