Results 151 to 160 of about 13,408 (180)

Classical and Bayesian Methods for Testing the Ratio of Variances of Delta-Lognormal Distributions

Lobachevskii Journal of Mathematics, 2023
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Panichkitkosolkul, Wararit, Al Amin, Mohammad Mastak, Volodin, Andrei   +2 more
openaire   +1 more source

Bayesian confidence intervals for the difference between variances of delta‐lognormal distributions

Biometrical Journal, 2020
AbstractUnnatural rainfall fluctuation can result in such severe natural phenomena as drought and floods. This variability not only occurs in areas with unusual natural features such as land formations and drainage but can also be due to human intervention.
Patcharee Maneerat, Sa‐Aat Niwitpong, Suparat Niwitpong   +2 more
openaire   +3 more sources

Comparing Medical Care Costs using Bayesian Credible Intervals for the Ratio of Means of Delta-Lognormal Distributions

International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems, 2020
When considering the medical care costs data with a high proportion of zero items of two inpatient groups, comparing them can be estimated using confidence intervals for the ratio of the means of two delta-lognormal distributions. The Bayesian credible interval-based uniform-beta prior (BCIh-UB) is proposed and compared with the generalized confidence
Patcharee Maneerat, Sa-Aat Niwitpong
openaire   +1 more source

Confidence Intervals for the Mean of Delta-Lognormal Distribution

2018
Focusing on delta-lognormal distribution, confidence intervals for the mean are proposed in this research. This will be achieved using a method of variance estimates recovery (MOVER) and generalized confidence interval (GCI) based on weighted beta distribution by Hannig, and MOVER based on variance stabilized transformation (VST).
Patcharee Maneerat, Sa-Aat Niwitpong, Suparat Niwitpong   +2 more
openaire   +1 more source

Bayesian confidence intervals for a single mean and the difference between two means of delta-lognormal distributions

Communications in Statistics - Simulation and Computation, 2019
Natural rainfall is necessary for agriculture in Thailand. Often, rainfall data contain zero and positive right-skewed observations.
Patcharee Maneerat, Sa-Aat Niwitpong, Suparat Niwitpong   +2 more
openaire   +1 more source

Confidence Intervals for the Ratio of Means of Delta-Lognormal Distribution

2017
This paper investigates confidence intervals for the ratio of means in the delta-lognormal distribution. The method of variance estimates recovery (MOVER) based on the variance stabilizing transformation, Wilson score method and Jeffreys method were proposed to establish confidence intervals for the ratio of delta-lonormal means.
Patcharee Maneerat, Sa-Aat Niwitpong, Suparat Niwitpong   +2 more
openaire   +1 more source

Estimating Fish Dispersal Using Interval Estimations for the Single Variance of a Delta-Lognormal Distribution

2020
Fish dispersal can be used to indicate the abundance of fish populations in a given local environment, and it is also important for understanding the ecology of fish species. The motivation of this research is how to estimate the variation in fish abundance from trawl surveys using interval estimations for the single variance of a delta-lognormal ...
Patcharee Maneerat, Sa-Aat Niwitpong, Pisit Nakjai   +2 more
openaire   +1 more source

Confidence Intervals for Coefficient of Variation of Three Parameters Delta-Lognormal Distribution

2018
The aim of this paper is to propose confidence intervals using the concepts that include the generalized fiducial interval (GFI) and the method of variance estimates recovery (MOVER). The performance of the proposed approaches were gauged in terms of the coverage probabilities and the expected lengths.
Noppadon Yosboonruang, Suparat Niwitpong, Sa-Aat Niwitpong   +2 more
openaire   +1 more source

Confidence Intervals for the Coefficient of Variation of the Delta-Lognormal Distribution

2017
This paper proposes confidence intervals for the coefficient of variation of the delta-lognormal distribution which are based on the generalized confidence interval (GCI) method, it is compared with the modified Fletcher method. The coverage probabilities and the expected lengths are used for assessing the performance of these confidence interval ...
Noppadon Yosboonruang, Sa-Aat Niwitpong, Suparat Niwitpong   +2 more
openaire   +1 more source

Confidence Intervals for the Difference and Ratio of Medians of the Delta-Lognormal Distribution

Lobachevskii Journal of Mathematics, 2023
Janthasuwan, Usanee, Niwitpong, Sa-Aat, Niwitpong, Suparat   +2 more
openaire   +1 more source