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- Sample_size_determination abstract "Sample size determination is the act of choosing the number of observations or replicates to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is determined based on the expense of data collection, and the need to have sufficient statistical power. In complicated studies there may be several different sample sizes involved in the study: for example, in a survey sampling involving stratified sampling there would be different sample sizes for each population. In a census, data are collected on the entire population, hence the sample size is equal to the population size. In experimental design, where a study may be divided into different treatment groups, there may be different sample sizes for each group.Sample sizes may be chosen in several different ways:expedience - For example, include those items readily available or convenient to collect. A choice of small sample sizes, though sometimes necessary, can result in wide confidence intervals or risks of errors in statistical hypothesis testing.using a target variance for an estimate to be derived from the sample eventually obtainedusing a target for the power of a statistical test to be applied once the sample is collected.How samples are collected is discussed in sampling (statistics) and survey data collection.".
- Sample_size_determination wikiPageExternalLink Sample_Size_Calculations.htm.
- Sample_size_determination wikiPageExternalLink ppc333.htm.
- Sample_size_determination wikiPageExternalLink Sample+size+calculator.
- Sample_size_determination wikiPageExternalLink bartlettkotrlikhiggins.pdf.
- Sample_size_determination wikiPageExternalLink Calculators.
- Sample_size_determination wikiPageExternalLink samplesize.html.
- Sample_size_determination wikiPageID "1776839".
- Sample_size_determination wikiPageRevisionID "600259117".
- Sample_size_determination hasPhotoCollection Sample_size_determination.
- Sample_size_determination subject Category:Sampling_(statistics).
- Sample_size_determination comment "Sample size determination is the act of choosing the number of observations or replicates to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is determined based on the expense of data collection, and the need to have sufficient statistical power.".
- Sample_size_determination label "Piano di campionamento".
- Sample_size_determination label "Sample size determination".
- Sample_size_determination label "Tamaño de la muestra".
- Sample_size_determination sameAs Tamaño_de_la_muestra.
- Sample_size_determination sameAs Piano_di_campionamento.
- Sample_size_determination sameAs m.025r_1d.
- Sample_size_determination sameAs Q2564360.
- Sample_size_determination sameAs Q2564360.
- Sample_size_determination wasDerivedFrom Sample_size_determination?oldid=600259117.
- Sample_size_determination isPrimaryTopicOf Sample_size_determination.