Results 11 to 20 of about 24,707 (163)

Simultaneous Confidence Intervals for the Ratios of the Means of Zero-Inflated Gamma Distributions and Its Application

Mathematics, 2022
Heavy rain in September (the middle of the rainy season in Thailand) can cause unexpected events and natural disasters such as flooding in many areas of the country.
Theerapong Kaewprasert, Sa-Aat Niwitpong, Suparat Niwitpong   +2 more
doaj   +2 more sources

Confidence Intervals for Assessing Non-Inferiority with Assay Sensitivity in a Three-Arm Trial with Normally Distributed Endpoints

Mathematics, 2022
Various approaches including hypothesis test and confidence interval (CI) construction have been proposed to assess non-inferiority and assay sensitivity via a known fraction or pre-specified margin in three-arm trials with continuous or discrete ...
Niansheng Tang, Fan Liang
doaj   +2 more sources

Generalized fiducial inference for normal linear mixed models [PDF]

, 2012
While linear mixed modeling methods are foundational concepts introduced in any statistical education, adequate general methods for interval estimation involving models with more than a few variance components are lacking, especially in the unbalanced ...
Cisewski, Jessi, Hannig, Jan
core   +6 more sources

Simultaneous confidence intervals for all pairwise comparisons of the means of delta-lognormal distributions with application to rainfall data.

PLoS ONE, 2021
Natural disasters such as flooding and landslides are important unexpected events during the rainy season in Thailand, and how to direct action to avoid their impacts is the motivation behind this study.
Patcharee Maneerat, Sa-Aat Niwitpong, Suparat Niwitpong   +2 more
doaj   +2 more sources

Confidence Intervals for the Difference and Ratio of Two Variances of Delta–Inverse Gaussian Distributions

Mathematics
Accurate statistical inference for zero-inflated and highly skewed data requires confidence interval procedures with a strong finite-sample performance.
Wasurat Khumpasee, Sa-Aat Niwitpong, Suparat Niwitpong   +2 more
doaj   +2 more sources

The Simultaneous Confidence Interval for the Ratios of the Coefficients of Variation of Multiple Inverse Gaussian Distributions and Its Application to PM2.5 Data

Symmetry
: Due to slash/burn agricultural activity and frequent forest fires, PM 2.5 has become a significant air pollution problem in Thailand, especially in the north and north east regions. Since its dispersion differs both spatially and temporally, estimating
Wasana Chankham, S. Niwitpong, S. Niwitpong   +2 more
semanticscholar   +3 more sources

Confidence Intervals for the Coefficient of Variation in Delta Inverse Gaussian Distributions

Symmetry
The inverse Gaussian distribution is characterized by its asymmetry and right-skewed shape, indicating a longer tail on the right side. This distribution represents extreme values in one direction, such as waiting times, stochastic processes, and ...
Wasurat Khumpasee, S. Niwitpong, S. Niwitpong   +2 more
semanticscholar   +3 more sources

Bayesian computation for the common coefficient of variation of delta-lognormal distributions with application to common rainfall dispersion in Thailand [PDF]

PeerJ, 2022
Rainfall fluctuation makes precipitation and flood prediction difficult. The coefficient of variation can be used to measure rainfall dispersion to produce information for predicting future rainfall, thereby mitigating future disasters.
Noppadon Yosboonruang, Sa-Aat Niwitpong, Suparat Niwitpong   +2 more
doaj   +2 more sources

The Bayesian confidence intervals for measuring the difference between dispersions of rainfall in Thailand [PDF]

PeerJ, 2020
The coefficient of variation is often used to illustrate the variability of precipitation. Moreover, the difference of two independent coefficients of variation can describe the dissimilarity of rainfall from two areas or times.
Noppadon Yosboonruang, Sa-Aat Niwitpong, Suparat Niwitpong   +2 more
doaj   +2 more sources

Parametric Bootstrap Confidence Interval Estimation for the Percentile and Difference between the Percentiles of Delta-Lognormal Distributions with Application to Rainfall Data in Thailand

Sains Malaysiana, 2023
In Thailand, flooding often occurs during the summer monsoon when many tropical storms affect the country. The motivation of this study was to plan for and mitigate the damage caused by flooding in the future.
Warisa Thangjai, S. Niwitpong, S. Niwitpong   +2 more
semanticscholar   +1 more source