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313794

Testing the Equality of Coefficient of Variation in K Inverse Gaussian Populations

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Last updated: 05 Jan 2025

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Abstract

Three tests (likelihood ratio test, Wald test and Score test) are derived for the hypothesis that the coefficients of variation of k Inverse Gaussian populations are equal. The k samples may be of unequal size. The usual x²-approximation is used to investigate the behavior of the three tests under the null hypothesis and to compare the powers of these tests via a simulation study. Independent samples of equal and unequal size from the Inverse Gaussian distribution were used.  

DOI

10.21608/esju.2002.313794

Keywords

Inverse Gaussian distribution, Likelihood ratio test, Score Test, Wald Test, X, approximation, Coefficient of variation, Simulation of Size, Simulation of Power

Volume

46

Article Issue

2

Related Issue

43026

Issue Date

2002-12-01

Publish Date

2002-12-01

Page Start

129

Page End

144

Print ISSN

0542-1748

Online ISSN

2786-0086

Link

https://esju.journals.ekb.eg/article_313794.html

Detail API

https://esju.journals.ekb.eg/service?article_code=313794

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2

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Original Article

Type Code

1,914

Publication Type

Journal

Publication Title

The Egyptian Statistical Journal

Publication Link

https://esju.journals.ekb.eg/

MainTitle

Testing the Equality of Coefficient of Variation in K Inverse Gaussian Populations

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Article

Created At

28 Dec 2024