Random sampling occurs within each of these groups. This sampling technique is often used when researchers are aware of subdivisions within a population that need to be accounted for in the research – e.g. research on gender split in wages requires a distinction between female and male ...
However, in practice, clusters often do not perfectly represent the population’s characteristics, which is why this method provides less statistical certainty than simple random sampling, and is more prone to research biases like selection bias. Because clusters are usually naturally occurring groups,...
In conclusion, the proposed estimators shows remarkable efficiency in finite population variance estimation under the simple random sampling scheme without replacement. The encouraging findings suggest their applicability in diverse survey scenarios, and future research avenues could further enhance their adaptab...
We hope that this review will inspire further research and the development of more suitable extraction-free reagents and fully automated testing devices for rapid, point-of-care diagnostics. Keywords: pathogens; nucleic acid detection; noncontaminating; simple and rapid; POCT...
The results reveal that the proposed neutrosophic class of estimators produces more accurate and precise estimates of the neutrosophic population mean than the existing neutrosophic estimators in simple random sampling, which is the ultimate goal of inferential statistics. Keywords: survey sampling; fuzzy ...
with no algorithmic dependence on the rip constants. as a tradeoff, the results in setting iii are developed for a random matrix u that satisfies the jl lemma (johnson and lindenstrauss 1984 ). in contrast, the results for the first two settings are deterministic by assuming u satisfies the ...
Speech streams and synthesized sweeps were normalized to the same RMS amplitude in MATLAB (MathWorks, Natick, MA, USA) and then played to participants binaurally at a sampling rate of 44,100 Hz via a pair of insert earphones (ER2, Etymotic Research, USA) under control of the Psychophysics ...
A simple standardisation of omnidirectional sonar in fisheries research through field calibration and sampling data 来自 ResearchGate 喜欢 0 阅读量: 18 作者: Patrice Brehmer,François Gerlotto 出版社: Blackwell Publishing Ltd 摘要: The paper presents a method making a comparison of acoustic results ...
The researchers suggest two ideal families of exponential estimators to obtain an enhanced population (CDF) estimators in simple random sampling under non-response, by utilizing the data from dual auxiliary variable. The first-order approximation is used for the bias, mean squared error (MSE), and...
Sampling proper negatives from a large document pool is vital to effectively train a dense retrieval model. However, existing negative sampling strategies suffer from the uninformative or false negative problem. In this work, we empirically show that according to the measured relevance sc...