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A generalized gamma-weibull distribution: Model,properties and applications
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نویسنده
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meshkat r.s. ,torabi h. ,hamedani g.g.
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منبع
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pakistan journal of statistics and operation research - 2016 - دوره : 12 - شماره : 2 - صفحه:201 -212
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چکیده
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We prepare a new method to generate family of distributions. then,a family of univariate distributions generated by the gamma random variable is defined. the generalized gamma-weibull (ggw) distribution is studied as a special case of this family. certain mathematical properties of moments are provided. to estimate the model parameters,the maximum likelihood estimators and the asymptotic distribution of the estimators are discussed. certain characterizations of ggw distribution are presented. finally,the usefulness of the new distribution,as well as its effectiveness in comparison with other distributions,are shown via an application of a real data set.
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کلیدواژه
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Characterizations; Gamma-generated distribution; Generalized gamma-weibull distribution; Hazard function; Maximum likelihood estimation; Weibull distribution
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آدرس
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department of statistics,yazd university,yazd, ایران, department of statistics,yazd university,yazd, ایران, department of mathematics,statistics and computer science,marquette university,milwaukee, United States
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Authors
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