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- Statistical_unit abstract "A unit in a statistical analysis refers to one member of a set of entities being studied. It is the material source for the mathematical abstraction of a "random variable". Common examples of a unit would be a single person, animal, plant, or manufactured item that belongs to a larger collection of such entities being studied.Units are often referred to as being either experimental units, sampling units or, more generally, units of observation: An "experimental unit" is typically thought of as one member of a set of objects that are initially equivalent, with each object then subjected to one of several experimental treatments. A "sampling unit" is typically thought of as an object that has been sampled from a statistical population. This term is commonly used in opinion polling and survey sampling.In most statistical studies, the goal is to generalize from the observed units to a larger set consisting of all comparable units that exist but are not directly observed. For example, if we randomly sample 100 people and ask them which candidate they intend to vote for in an election, our main interest is in the voting behavior of all eligible voters, not exclusively on the 100 observed units.In some cases, the observed units may not form a sample from any meaningful population, but rather constitute a convenience sample, or may represent the entire population of interest. In this situation, we may study the units descriptively, or we may study their dynamics over time. But it typically does not make sense to talk about generalizing to a larger population of such units. Studies involving countries or business firms are often of this type. Clinical trials also typically use convenience samples, however the aim is often to make inferences about the efficacy of treatments in other patients, and given the inclusion and exclusion criteria for some clinical trials, the sample may not be representative of the majority of patients with the condition or disease. In simple data sets, the units are in one-to-one correspondence with the data values. In more complex data sets, multiple measurements are made for each unit. For example, if blood pressure measurements are made daily for a week on each subject in a study, there would be seven data values for each statistical unit. Multiple measurements taken on an individual are not independent (they will be more alike compared to measurements taken on different individuals). Ignoring these dependencies during the analysis can lead to an inflated sample size or pseudoreplication.While a unit is often the lowest level at which observations are made, in some cases, a unit can be further decomposed as a statistical assembly.Many statistical analyses use quantitative data that have units of measurement. This is a distinct and non-overlapping use of the term "unit."".
- Statistical_unit wikiPageExternalLink books?id=T3wWj2kVYZgC&printsec=frontcover&cad=4_0.
- Statistical_unit wikiPageExternalLink productCd-0471727563.html.
- Statistical_unit wikiPageExternalLink catalogue.asp?isbn=9780521683579.
- Statistical_unit wikiPageExternalLink ~rab.
- Statistical_unit wikiPageID "27580".
- Statistical_unit wikiPageLength "5215".
- Statistical_unit wikiPageOutDegree "25".
- Statistical_unit wikiPageRevisionID "601509749".
- Statistical_unit wikiPageWikiLink Accidental_sampling.
- Statistical_unit wikiPageWikiLink Business.
- Statistical_unit wikiPageWikiLink Category:Sampling_(statistics).
- Statistical_unit wikiPageWikiLink Category:Statistical_terminology.
- Statistical_unit wikiPageWikiLink Clinical_trial.
- Statistical_unit wikiPageWikiLink Country.
- Statistical_unit wikiPageWikiLink Data.
- Statistical_unit wikiPageWikiLink Descriptive_statistics.
- Statistical_unit wikiPageWikiLink Dynamic_model.
- Statistical_unit wikiPageWikiLink Human_subject_research.
- Statistical_unit wikiPageWikiLink Independent_and_identically_distributed_random_variables.
- Statistical_unit wikiPageWikiLink Laboratory_specimen.
- Statistical_unit wikiPageWikiLink Mathematical_model.
- Statistical_unit wikiPageWikiLink Opinion_poll.
- Statistical_unit wikiPageWikiLink Opinion_polling.
- Statistical_unit wikiPageWikiLink Oscar_Kempthorne.
- Statistical_unit wikiPageWikiLink Pseudoreplication.
- Statistical_unit wikiPageWikiLink Random_variable.
- Statistical_unit wikiPageWikiLink Research_subject.
- Statistical_unit wikiPageWikiLink Statistical_assembly.
- Statistical_unit wikiPageWikiLink Statistical_model.
- Statistical_unit wikiPageWikiLink Statistical_population.
- Statistical_unit wikiPageWikiLink Survey_sampling.
- Statistical_unit wikiPageWikiLink Unit_of_analysis.
- Statistical_unit wikiPageWikiLink Unit_of_observation.
- Statistical_unit wikiPageWikiLink Units_of_measurement.
- Statistical_unit wikiPageWikiLink William_Gemmell_Cochran.
- Statistical_unit wikiPageWikiLinkText "Statistical unit".
- Statistical_unit wikiPageWikiLinkText "experimental unit".
- Statistical_unit wikiPageWikiLinkText "observations".
- Statistical_unit wikiPageWikiLinkText "statistical unit".
- Statistical_unit wikiPageWikiLinkText "unit".
- Statistical_unit wikiPageWikiLinkText "units".
- Statistical_unit hasPhotoCollection Statistical_unit.
- Statistical_unit wikiPageUsesTemplate Template:Cite_book.
- Statistical_unit wikiPageUsesTemplate Template:Experimental_design.
- Statistical_unit wikiPageUsesTemplate Template:Statistics.
- Statistical_unit subject Category:Sampling_(statistics).
- Statistical_unit subject Category:Statistical_terminology.
- Statistical_unit comment "A unit in a statistical analysis refers to one member of a set of entities being studied. It is the material source for the mathematical abstraction of a "random variable".".
- Statistical_unit label "Statistical unit".
- Statistical_unit sameAs وحدة_إحصائية.
- Statistical_unit sameAs Στατιστική_μονάδα.
- Statistical_unit sameAs Unit_sampel.
- Statistical_unit sameAs Статистичка_единица.
- Statistical_unit sameAs m.06v_0.
- Statistical_unit sameAs Q3409269.
- Statistical_unit sameAs Q3409269.
- Statistical_unit wasDerivedFrom Statistical_unit?oldid=601509749.
- Statistical_unit isPrimaryTopicOf Statistical_unit.