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The likelihood ratio test for homogeneity in bivariate normal mixtures
Authors:Yong Song Qin  Bruce Smith
Affiliation:a Department of Mathematics and Statistics, Dalhousie University, Halifax, NS Canada B3H 3J5
b Department of Mathematics, Guangxi Normal University, Guilin, Guangxi 541004, China
Abstract:This paper investigates the asymptotic properties of the likelihood ratio statistic for testing homogeneity in a bivariate normal mixture model with known covariance. The asymptotic null distributions of the likelihood ratio statistic and a modified likelihood ratio statistic are obtained in explicit form. The distributions are identical. The results of a small simulation study to approximate the null distribution are presented.
Keywords:62H15   62E20   62H10
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