Order statistics from dependent, completely monotone distributions

  • Authors:
  • Mark Brown

  • Affiliations:
  • Department of mathematics, the city college, cuny, new york, ny 10031 e-mail: cybergarf@aol.com

  • Venue:
  • Probability in the Engineering and Informational Sciences
  • Year:
  • 2009

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Abstract

We consider order statistics corresponding to X1, …, Xn, where $X_{i} \sim \lambda_{i}^{-1} \cal{E}$, i = 1, …, n, ℰ1, …, ℰn are independent and identically distributed exponentials with mean 1, and λ1, …, λn are possibly dependent, possibly nonidentically distributed, positive random variables, with $E\lambda_{i}^{-1} . Thus, λ1, …, λn, can be interpreted as random failure rates, and their dependency might be due to common environmental factors.