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When is n large enough? Looking for the right sample size to estimate proportions
(Taylor and Francis Ltd., 2019)
The central limit theorem indicates that when the sample size goes to infinite, the sampling distribution of means tends to follow a normal distribution; it is the basis for the most usual confidence interval and sample ...
Población, Muestra y Muestreo
(2017-08-31)
This presentation is about the population, sample and sampling in nursing research area.
(X)OVER-BAR CHARTS WITH VARIABLE SAMPLE-SIZE
(Amer Soc Quality Control-asqc, 2014)
Tamanho de amostra e estimativa de custo em levantamento epidemiológico de cárie dentária
(2012-03-01)
This study aimed to analyze how the prevalence and the distribution of dental caries influence the sample size in epidemiological surveys, and how much are the costs. Secondary data of oral health surveys in 12-year-old ...
Tamanho de amostra e estimativa de custo em levantamento epidemiológico de cárie dentária
(2012-03-01)
This study aimed to analyze how the prevalence and the distribution of dental caries influence the sample size in epidemiological surveys, and how much are the costs. Secondary data of oral health surveys in 12-year-old ...
The Endothelial Sample Size Analysis in Corneal Specular Microscopy Clinical Examinations
(LIPPINCOTT WILLIAMS & WILKINSPHILADELPHIA, 2012)
Purpose: To evaluate endothelial cell sample size and statistical error in corneal specular microscopy (CSM) examinations. Methods: One hundred twenty examinations were conducted with 4 types of corneal specular microscopes: ...
Estimating Sample Size for Usability Testing
(Universidad UTE, 2017)
Comparative study of the estimated sample size for benthic intertidal species and communities
(Pontificia Universidad Católica de Valparaíso<BR>Facultad de Recursos Naturales<BR>Escuela de Ciencias del Mar, 2011)