Confidence intervals for ratio of means of delta-lognormal distributions based on left-censored data with application to rainfall data in Thailand

W Thangjai, SA Niwitpong - PeerJ, 2023 - peerj.com
Thailand is a country that is prone to both floods and droughts, and these natural disasters
have significant impacts on the country's people, economy, and environment. Estimating …

Critical Analysis of Beta Random Variable Generation Methods

E Almaraz Luengo, C Gragera - Mathematics, 2023 - mdpi.com
The fast generation of values of the beta random variable is a subject of great interest and
multiple applications, ranging from purely mathematical and statistical ones to applications …

Bayesian Estimation for the Difference between Coefficients of Quartile Variation of Delta-Lognormal Distributions: An Application to Rainfall in Thailand

N Yosboonruang, SA Niwitpong - Symmetry, 2023 - mdpi.com
The coefficient of quartile variation is a valuable measure used to assess data dispersion
when it deviates from a normal distribution or displays skewness. In this study, we focus …

Generalized Confidence Interval for the Difference Between Percentiles of Birnbaum–Saunders Distributions and Its Application to PM2. 5 in Thailand

W Thangjai, SA Niwitpong… - Computational and …, 2024 - Wiley Online Library
The Birnbaum–Saunders distribution is of particular interest for statistical inference. This
distribution represents the failure time distribution in engineering. In addition, the Birnbaum …

Simultaneous Confidence Intervals for Ratios of the Percentiles of the Delta-Lognormal Distribution

U Janthasuwan, S Niwitpong… - Malaysian Journal of …, 2024 - mjfas.utm.my
Statistical percentiles are extremely important and valuable measurement tools in various
contexts. They offer significant advantages when it comes to estimating a wide range of …

Confidence Intervals for Common Mean of Delta-Lognormal Distributions Based on Left-Censored Data with Application to Rainfall Data in Thailand

W Thangjai, SA Niwitpong - Thailand Statistician, 2024 - ph02.tci-thaijo.org
In environmental data analysis, it is common to encounter left-censored data, such as rainfall
and particulate matter data, which follow the delta-lognormal distribution. This paper focuses …