Results 1 to 10 of about 24,707 (163)

Generalized Confidence Intervals for Zero-Inflated Pareto Distribution

open access: yesMathematics, 2021
This paper considers interval estimations for the mean of Pareto distribution with excess zeros. Three approaches for interval estimation are proposed based on fiducial generalized pivotal quantities (FGPQs), respectively.
Xiao Wang, Xinmin Li
doaj   +4 more sources

Measurement of dispersion of PM 2.5 in Thailand using confidence intervals for the coefficient of variation of an inverse Gaussian distribution [PDF]

open access: yesPeerJ, 2022
Air pollution is a growing concern for the general public in Thailand with PM 2.5 (particulate matter ≤ 2.5 µm) having the greatest impact on health. The inverse Gaussian (IG) distribution is used for examining the frequency of high concentration events ...
Wasana Chankham   +2 more
doaj   +4 more sources

Generalized Confidence Intervals and Fiducial Intervals for Some Epidemiological Measures [PDF]

open access: yesInternational Journal of Environmental Research and Public Health, 2016
For binary outcome data from epidemiological studies, this article investigates the interval estimation of several measures of interest in the absence or presence of categorical covariates.
I. Bebu, G. Luta, T. Mathew, B. Agan
semanticscholar   +5 more sources

Generalized Fiducial Inference for the Generalized Rayleigh Distribution

open access: yesModelling, 2023
This article focuses on the interval estimation of the generalized Rayleigh distribution with scale and shape parameters. The generalized fiducial method is used to construct the fiducial point estimators as well as the fiducial confidence intervals, and
Xuan Zhu, Weizhong Tian, Chengliang Tian
doaj   +4 more sources

Confidence intervals for rainfall dispersions using the ratio of two coefficients of variation of lognormal distributions with excess zeros. [PDF]

open access: yesPLoS ONE, 2022
Rainfall fluctuation is directly affected by the Earth's climate change. It can be described using the coefficient of variation (CV). Similarly, the ratio of CVs can be used to compare the rainfall variation between two regions. The ratio of CVs has been
Noppadon Yosboonruang   +2 more
doaj   +4 more sources

Estimation of common percentile of rainfall datasets in Thailand using delta-lognormal distributions [PDF]

open access: yesPeerJ, 2022
Weighted percentiles in many areas can be used to investigate the overall trend in a particular context. In this article, the confidence intervals for the common percentile are constructed to estimate rainfall in Thailand. The confidence interval for the
Warisa Thangjai   +2 more
doaj   +3 more sources

Modified generalized p-value and confidence interval by Fisher's fiducial approach

open access: yesHacettepe Journal of Mathematics and Statistics, 2017
In this study, we develop two simple generalized confidence intervals for the difference between means of two normal populations with heteroscedastic variances which is usually referred to as the Behrens-Fisher problem. The developed confidence intervals are compared with the generalized confidence interval in the literature.
Evren Ozkip, B. Yazici, A. Sezer
semanticscholar   +2 more sources

Estimation methods for the variance of Birnbaum-Saunders distribution containing zero values with application to wind speed data in Thailand [PDF]

open access: yesPeerJ
Thailand is currently grappling with a severe problem of air pollution, especially from small particulate matter (PM), which poses considerable threats to public health.
Natchaya Ratasukharom   +2 more
doaj   +3 more sources

Simultaneous confidence intervals for all pairwise differences between the coefficients of variation of rainfall series in Thailand [PDF]

open access: yesPeerJ, 2021
The delta-lognormal distribution is a combination of binomial and lognormal distributions, and so rainfall series that include zero and positive values conform to this distribution. The coefficient of variation is a good tool for measuring the dispersion
Noppadon Yosboonruang   +2 more
doaj   +3 more sources

Iteratively Reweighted Least Squares Fiducial Interval for Variance in Unbalanced Variance Components Model

open access: yesMathematics
The objective of this work is to propose the iteratively reweighted least squares concept to form a fiducial generalized pivotal quantity of the between-group variance component for the unbalanced variance components model.
Arisa Jiratampradab   +2 more
doaj   +2 more sources

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