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Bootstrap Methods for Estimating the Confidence Interval for the Index of Dispersion of the Zero-Truncated Poisson-Amarendra Distribution |
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Creator | Wararit Panichkitkosolkul |
Title | Bootstrap Methods for Estimating the Confidence Interval for the Index of Dispersion of the Zero-Truncated Poisson-Amarendra Distribution |
Publisher | Phetchaburi Rajabhat University |
Publication Year | 2566 |
Journal Title | Interdisciplinary Research Review (IRR) |
Journal Vol. | 18 |
Journal No. | 4 |
Page no. | 13-22 |
Keyword | interval estimation, count data, Amarendra distribution, Bootstrap interval, simulation |
URL Website | https://ph02.tci-thaijo.org/index.php/jtir |
Website title | Interdisciplinary Research Review (IRR) |
ISSN | 2697-536X |
Abstract | The zero-truncated count data is of primary interest in several areas such as biological science, medical science, demography, ecology, etc. Recently, the zero-truncated Poisson-Amarendra distribution has been proposed for such data. However, the confidence interval estimation of the index of dispersion has not yet been examined. This paper examined confidence interval estimation based on percentile, simple, biased-corrected, and accelerated bootstrap methods in terms of coverage probability and average interval length via Monte Carlo simulation. The results indicate that attaining the nominal confidence level using the bootstrap methods was not possible for small sample sizes regardless of the other settings. Moreover, when the sample size was large, the performances of the methods were not substantially different. However, the percentile bootstrap and the simple bootstrap methods provided the shortest average lengths for small sample sizes. Last, the bootstrap methods were used to calculate the confidence intervals for the index of dispersion of the zero-truncated Poisson-Amarendra distribution via two numerical examples, the results of which match those from the simulation study. |