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- Wald_test abstract "The Wald test is a parametric statistical test named after the Transylvanian statistician Abraham Wald with a great variety of uses. Whenever a relationship within or between data items can be expressed as a statistical model with parameters to be estimated from a sample, the Wald test can be used to test the true value of the parameter based on the sample estimate.Suppose an economist, who has data on social class and shoe size, wonders whether social class is associated with shoe size. Say is the average increase in shoe size for upper-class people compared to middle-class people: then the Wald test can be used to test whether is 0 (in which case social class has no association with shoe size) or non-zero (shoe size varies between social classes). Here, , the hypothetical difference in shoe sizes between upper and middle-class people in the whole population, is a parameter. An estimate of might be the difference in shoe size between upper and middle-class people in the sample. In the Wald test, the economist uses the estimate and an estimate of variability (see below) to draw conclusions about the unobserved true . Or, for a medical example, suppose smoking multiplies the risk of lung cancer by some number R: then the Wald test can be used to test whether R = 1 (i.e. there is no effect of smoking) or is greater (or less) than 1 (i.e. smoking alters risk).A Wald test can be used in a great variety of different models including models for dichotomous variables and models for continuous variables.".
- Wald_test wikiPageExternalLink mathword.html.
- Wald_test wikiPageExternalLink w.html.
- Wald_test wikiPageID "1600352".
- Wald_test wikiPageRevisionID "569874640".
- Wald_test hasPhotoCollection Wald_test.
- Wald_test subject Category:Statistical_tests.
- Wald_test type Abstraction100002137.
- Wald_test type Cognition100023271.
- Wald_test type Experiment105798043.
- Wald_test type HigherCognitiveProcess105770664.
- Wald_test type Inquiry105797597.
- Wald_test type ProblemSolving105796750.
- Wald_test type Process105701363.
- Wald_test type PsychologicalFeature100023100.
- Wald_test type StatisticalTests.
- Wald_test type Thinking105770926.
- Wald_test type Trial105799212.
- Wald_test comment "The Wald test is a parametric statistical test named after the Transylvanian statistician Abraham Wald with a great variety of uses. Whenever a relationship within or between data items can be expressed as a statistical model with parameters to be estimated from a sample, the Wald test can be used to test the true value of the parameter based on the sample estimate.Suppose an economist, who has data on social class and shoe size, wonders whether social class is associated with shoe size.".
- Wald_test label "Prueba de Wald".
- Wald_test label "Test de Wald".
- Wald_test label "Wald test".
- Wald_test label "Wald test".
- Wald_test label "Wald-Test".
- Wald_test label "Тест Вальда".
- Wald_test sameAs Wald-Test.
- Wald_test sameAs Prueba_de_Wald.
- Wald_test sameAs Test_de_Wald.
- Wald_test sameAs Wald_test.
- Wald_test sameAs m.05fny0.
- Wald_test sameAs Q748664.
- Wald_test sameAs Q748664.
- Wald_test sameAs Wald_test.
- Wald_test wasDerivedFrom Wald_test?oldid=569874640.
- Wald_test isPrimaryTopicOf Wald_test.