null hypothesis

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

1930–35 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
null hypothesis
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
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source'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.'s 21st Century Lexicon
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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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