Abstract
This paper investigates the asymptotic properties of the modified likelihood ratio statistic for testing homogeneity in bivariate normal mixture models with an unknown structural parameter. It is shown that the modified likelihood ratio statistic has χ 22 null limiting distribution.
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References
Lindsay B G. Moment matrices: applications in mixtures. Ann Statist, 17: 722–740 (1989)
Leroux B. Consistent estimation of a mixture distribution. Ann Statist, 20: 1350–1360 (1992)
Chernoff H, Lander E. Asymptotic distribution of the likelihood ratio test that a mixture of two binomials is a single binomial. J Statist Plann Inference, 43: 19–40 (1995)
Cheng R C H, Traylor L. Non-regular maximum likelihood problems (with discussion). J R Statist Soc B, 57: 3–44 (1995)
Chen H, Chen J. Large sample distribution of the likelihood ratio test for normal mixtures. Statist Probab Lett, 52: 125–133 (2001)
Chen H, Chen J. Tests for homogeneity in normal mixture with presence of a structural parameter. Statist Sinica, 13: 351–365 (2003)
Chen H, Chen J, Kalbfleisch J D. A modified likelihood ratio test for homogeneity in finite mixture models. J R Statist Soc B, 63: 19–29 (2001).
Qin Y, Smith B. Likelihood ratio test for homogeneity in normal mixtures in the presence of a structural parameter. Statist Sinica, 14: 1165–1177 (2004)
Hartigan J A. A failure of likelihood asymptotics for normal mixtures. In: Lecam L, Olshen R A, eds. Proceedings of the Berkeley Conference in Honor of Neyman J and Kiefer J. Wadsworth: Belmont, 1985, 807–810
Chen H, Chen J, Kalbfleisch J D. A modified likelihood ratio test for homogeneity in the finite mixture models. Technical Report STAT 2000-01. Waterloo: Department of Statistics and Actuarial Science, University of Waterloo, 2000
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This work was supported by the National Natural Science Foundation of China (Grant No. 10661003), the Natural Science Foundation of Guangxi (Grant No. 0728092) and SRF for ROCS, SEM (Grant No. [2004]527)
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Qin, Y., Lei, Q. Modified likelihood ratio test for homogeneity in bivariate normal mixtures with presence of a structural parameter. Sci. China Ser. A-Math. 51, 1871–1882 (2008). https://doi.org/10.1007/s11425-007-0180-7
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DOI: https://doi.org/10.1007/s11425-007-0180-7