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Stochastic comparisons of Poisson and binomial random variables with their mixtures.
Misra-N; Singh-H; Harner-EJ
Stat Probab Lett 2003 Dec; 65(4):279-290
Motivated by an ecological sampling problem, we compare a Poisson distribution having a fixed mean with a Poisson distribution having a random mean, which has an arbitrary continuous (or discrete) probability distribution. These comparisons are made with respect to the likelihood ratio ordering, simple stochastic ordering, uniform variability ordering and expectation ordering. As a particular case, the mixed Poisson and the Poisson distribution with a fixed mean are compared when both the distributions have the same mean. Similar comparisons are made between the mixed binomial and the binomial distribution having a fixed probability of success.
Statistical-analysis; Statistical-quality-control; Mathematical-models
Department of Statistics, West Virginia University, PO Box 6330, Morgantown, WV 26506-6330
Issue of Publication
Statistics & Probability Letters
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division