In statistical hypothesis testing, the alternative hypothesis (or maintained hypothesis or research hypothesis) and the null hypothesis are the two rival hypotheses which are compared by a statistical hypothesis test. An example might be where water quality in a stream has been observed over many years and a test is made of the null hypothesis tha...
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http://en.wikipedia.org/wiki/Alternative_hypothesis
(from the article `statistics`) ...probability distribution. First, a tentative assumption is made about the parameter or distribution. This assumption is called the null hypothesis ...
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'The hypothesis that the restriction or set of restrictions to be tested does NOT hold.' Often denoted H
1. Synonym for 'maintained hypothesis.' Source: Davidson and MacKinnon, 1993, p 78-79 Contexts: econometrics; statistics; estimation
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The alternative hypothesis, Ha, is a statement of what a statistical hypothesis test is set up to establish. For example, in a clinical trial of a new drug, the alternative hypothesis might be that the new drug has a different effect, on average, compared to that of the current drug. We would write Ha: the two drugs have different effects, on avera...
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http://www.encyclo.co.uk/local/20140
In Neyman-Pearson testing of a hypothesis, the hypothesis or family of hypotheses about the numerical value of a parameter if and only if the null hypothesis is rejected as untenable. ... (05 Mar 2000) ...
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Type: Term Definitions: 1. in Neyman-Pearson testing of a hypothesis, the hypothesis or family of hypotheses about the numerical value of a parameter if and only if the null hypothesis is rejected as untenable.
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1. In a trial, the alternative hypothesis might be that a treatment of unknown efficacy has more benefit than the standard treatment. The alternative hypothesis is an alternative to the null hypothesis of no difference that specifies some true underlying difference of set of differences between two or more populations or groups with regard to some ...
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http://www.virology.net/ATVGlossary.html
(in the statistical testing of a hypothesis) the hypothesis to be accepted if the null hypothesis is rejected.
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https://www.infoplease.com/dictionary/alternative-hypothesis
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