About: Siegel–Tukey test

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In statistics, the Siegel–Tukey test, named after Sidney Siegel and John Tukey, is a non-parametric test which may be applied to data measured at least on an ordinal scale. It tests for differences in scale between two groups. The test is used to determine if one of two groups of data tends to have more widely dispersed values than the other. In other words, the test determines whether one of the two groups tends to move, sometimes to the right, sometimes to the left, but away from the center (of the ordinal scale).

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rdfs:label	Test di Siegel-Tukey (it) Siegel–Tukey test (en)
rdfs:comment	In statistics, the Siegel–Tukey test, named after Sidney Siegel and John Tukey, is a non-parametric test which may be applied to data measured at least on an ordinal scale. It tests for differences in scale between two groups. The test is used to determine if one of two groups of data tends to have more widely dispersed values than the other. In other words, the test determines whether one of the two groups tends to move, sometimes to the right, sometimes to the left, but away from the center (of the ordinal scale). (en) Il test di Siegel-Tukey è un test non parametrico che si applica su dati misurati almeno su una e viene detto anche test per le differenze di scala tra due gruppi. Viene usato quando si vuole verificare se uno dei due gruppi tende ad avere valori più estremi dell'altro gruppo,sia sul lato inferiore della scala che su quello superiore.In altre parole se uno dei due gruppi tende ad allontanarsi da posizioni moderate, a volte verso destra, altre volte verso sinistra, ma comunque allontanandosi dal centro (della scala ordinale). (it)
dcterms:subject	Nonparametric statistics Statistical tests
Wikipage page ID	13890643 (xsd:integer)
Wikipage revision ID	929408274 (xsd:integer)
Link from a Wikipage to another Wikipage	Non-parametric test John Tukey Level of measurement Null hypothesis Sidney Siegel Statistics Alternative hypothesis Journal of the American Statistical Association Nonparametric statistics Statistical tests Mann–Whitney U test Non-parametric statistics Statistical hypothesis testing Wilcoxon rank sum test John Wilder Tukey
Link from a Wikipage to an external page	http://www.r-statistics.com/2010/02/siegel-tukey-a-non-parametric-test-for-equality-in-variability-r-code/
sameAs	Siegel–Tukey test Siegel–Tukey test Siegel–Tukey test Siegel–Tukey test
dbp:wikiPageUsesTemplate	dbt:Refimprove
has abstract	In statistics, the Siegel–Tukey test, named after Sidney Siegel and John Tukey, is a non-parametric test which may be applied to data measured at least on an ordinal scale. It tests for differences in scale between two groups. The test is used to determine if one of two groups of data tends to have more widely dispersed values than the other. In other words, the test determines whether one of the two groups tends to move, sometimes to the right, sometimes to the left, but away from the center (of the ordinal scale). The test was published in 1960 by Sidney Siegel and John Wilder Tukey in the Journal of the American Statistical Association, in the article "A Nonparametric Sum of Ranks Procedure for Relative Spread in Unpaired Samples." (en) Il test di Siegel-Tukey è un test non parametrico che si applica su dati misurati almeno su una e viene detto anche test per le differenze di scala tra due gruppi. Viene usato quando si vuole verificare se uno dei due gruppi tende ad avere valori più estremi dell'altro gruppo,sia sul lato inferiore della scala che su quello superiore.In altre parole se uno dei due gruppi tende ad allontanarsi da posizioni moderate, a volte verso destra, altre volte verso sinistra, ma comunque allontanandosi dal centro (della scala ordinale). Il test venne pubblicato nel 1960 da Sidney Siegel e John Wilder Tukey nel Journal of the American Statistical Association con l'articolo "A nonparametric sum of ranks procedure for relative spread in unpaired samples". (it)
gold:hypernym	Test
prov:wasDerivedFrom	wikipedia-en:Siegel–Tukey_test?oldid=929408274&ns=0
page length (characters) of wiki page	4938 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Siegel–Tukey_test
is Link from a Wikipage to another Wikipage of	John Tukey Sidney Siegel Siegel-Tukey test Nonparametric statistics List of statistics articles
is Wikipage redirect of	Siegel-Tukey test
is foaf:primaryTopic of	wikipedia-en:Siegel–Tukey_test

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