A new approach for estimating variance of a population employing information obtained from a stratified random sampling [PDF]
Heliyon, 2023 In this article, we suggest an enhanced estimator for the estimation of finite population variance using twofold auxiliary variable under stratified random sampling.
Sohaib Ahmad +5 more
doaj +2 more sources
Enumeration of microparticles on a gridded filter using a stratified random sampling tool [PDF]
MethodsX, 2023 Quantifying microplastics and other microparticles is a matter of interest in the field of environmental science. Stereomicroscopy is one of the most common methods to identify and enumerate micro-size particles.
Kayli Paterson +2 more
doaj +2 more sources
Area based stratified random sampling using geospatial technology in a community-based survey [PDF]
BMC Public Health, 2020 Background Most studies among Hispanics have focused on individual risk factors of obesity, with less attention on interpersonal, community and environmental determinants.
Carrie R. Howell +4 more
doaj +2 more sources
Multivariate Multi-Objective Allocation in Stratified Random Sampling: A Game Theoretic Approach. [PDF]
PLoS ONE, 2016 We consider the problem of multivariate multi-objective allocation where no or limited information is available within the stratum variance. Results show that a game theoretic approach (based on weighted goal programming) can be applied to sample size ...
Yousaf Shad Muhammad +2 more
doaj +2 more sources
An efficient logarithmic estimator in stratified random sampling using single auxiliary variable [PDF]
Scientific ReportsThis paper proposes a novel logarithmic-type estimator for the estimation of the population mean under stratified random sampling when a single auxiliary variable is available.
Fazal Shakoor +3 more
doaj +2 more sources
Exploring mixture estimators in stratified random sampling. [PDF]
PLoS OneAdvancements in sensor technology have brought a revolution in data generation. Therefore, the study variable and several linearly related auxiliary variables are recorded due to cost-effectiveness and ease of recording. These auxiliary variables are commonly observed as quantitative and qualitative (attributes) variables and are jointly used to ...
Iqbal K, Raza SMM, Mahmood T, Riaz M.
europepmc +3 more sources
Alternative Estimators for Stratified Random Sampling [PDF]
The Egyptian Statistical Journal, 1991 In this paper, two methods of estimation using estimators for stratified random sample are suggested. Two estimators are suggested for a positively correlated auxiliary variable and the other two are suggested for a negatively correlated auxiliary ...
Mounira Hussein
doaj +2 more sources
Remote Sensing, 2021 The Total Operating Characteristic (TOC) measures how the ranks of an index variable distinguish between presence and absence in a binary reference variable.
Zhen Liu, Robert Gilmore Pontius Jr
doaj +3 more sources
Multi-line characterization of whole molecular clouds using stratified random sampling [PDF]
EPJ Web of Conferences, 2022 We have developed a new technique to characterize the multi-line emission from molecular clouds using statistical sampling. Our method uses available extinction maps to select a relatively small sample of cloud positions that cover the full range of ...
Tafalla Mario +2 more
doaj +1 more source
Sampling of cashew nuts from cashew tree clones [PDF]
Revista Brasileira de Fruticultura, 2020 The aim of this work was to estimate sample sizes to assist the genetic improvement of the cashew tree (Anacardium occidentale L.). Stratified sampling, comprising five strata (S5, S4, S3, S2, and S1) of five cashew clones (BRS 274, BRS 275, BRS 226, BRS
Adroaldo Guimarães Rossetti +2 more
doaj +1 more source