Testing the Equality of Coefficient of Variation in K Inverse Gaussian Populations | ||||
| The Egyptian Statistical Journal | ||||
| Article 2, Volume 46, Issue 2, December 2002, Page 129-144 | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/esju.2002.313794 | ||||
 View on SCiNiTO | ||||
| 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. | ||||
| Keywords | ||||
| Inverse Gaussian Distribution; Likelihood Ratio Test; Score Test; Wald Test; X; Approximation; Coefficient of Variation; Simulation of Size; Simulation of Power | ||||
|
Statistics Article View: 25 |
||||
