Conditional tests for homogeneity of zero-inflated Poisson and Poisson-hurdle distributions

Authors:
Edward J. Bedrick;Anwar Hossain
Affiliations:
Department of Internal Medicine, University of New Mexico, Albuquerque, NM 87131, United States;Department of Mathematics, New Mexico Institute of Mining and Technology, Socorro, NM 87801, United States
Venue:
Computational Statistics & Data Analysis
Year:
2013

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Abstract

We develop two conditional tests for homogeneity of zero-inflated Poisson (ZIP) and Poisson-hurdle distributions. A Monte Carlo method is proposed for approximating the reference distributions of these tests. The techniques are applied to two examples.