Abstract #300963

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JSM 2002 Abstract #300963
Activity Number: 285
Type: Contributed
Date/Time: Wednesday, August 14, 2002 : 8:30 AM to 10:20 AM
Sponsor: IMS
Abstract - #300963
Title: Factor Effects Testing For Mixture Distributions
Author(s): Mong-Na Huang*+
Affiliation(s): National Sun Yat-sen University
Address: , Kaohsiung, International, 804, Taiwan, R.O.C.
Keywords: Likelihood ratio tests ; maximum likelihood estimation
Abstract:

In this work, testing of factor effects to the observed data from finite mixture distributions is discussed. Likelihood ratio tests are used to test whether some factors have significant effects to the mixture distribution model. Different methods on the compuation algorithm of the maximum likelihood estimation of the parameters in the mixture models are studied to carry out the likelihood ratio tests. These methods are applied to the data obtained from a study of emergence of {\textit{Pontomyia oceana}}({\textit{P. oceana}} in short), where the effects of factors, such as sex and temperature, to the distribution of the time that {\textit{P. oceana}} emerged are investigated.

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