A Bayesian Test for Equality of Scale Parameters of Several Exponential Distributions
Loading...
Date
2002
Authors
Odongo, L. O.
Samanta, M.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
This article develops a Bayesian test for equality of scale parameters of several exponential distributions. The null distribution of the test statistic is approximated by the chi-square distribution using heuristic reasoning in conjunction with the Wilson-Hilferty transfomation for the chi-square random variable. The accuracy of the chi-square approximation of the test statistic and the modified likelihood ratio statistic is examined and their powers compared using Monte Carlo simulation. The proposed test is found to be comparable to Bartlett's modified likelihood ratio test in terms of accuracy and power. A numerical example is included to illustrate the applications of these tests
Description
Keywords
Citation
Journal of Agriculture, Science and Technology Vol.4(1) 2002: 75-82