null hypothesis

noun
(in the statistical testing of a hypothesis) the hypothesis to be tested.


Origin:
1930–35

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World English Dictionary
null hypothesis
 
n
statistics hypothesis testing Compare alternative hypothesis the residual hypothesis if the alternative hypothesis tested against it fails to achieve a predetermined significance level

Collins English Dictionary - Complete & Unabridged 10th Edition
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Dictionary.com's 21st Century Lexicon
Main Entry:  null hypothesis
Part of Speech:  n
Definition:  the proposition that is to be tested; the hypothesis under investigation
Example:  A null hypothesis is tested and accepted or rejected in favor of an alternative.
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Example sentences
It's probably the major field in which papers get published with null hypothesis results.
First, one develops a null hypothesis about some phenomenon or parameter.
The null hypothesis is either rejected or not rejected.
The example given there led to rejection of the null hypothesis of equality.
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