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null hypothesis

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

Origin of null hypothesis

First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for null hypothesis

null hypothesis

noun
  1. statistics the residual hypothesis if the alternative hypothesis tested against it fails to achieve a predetermined significance levelCompare hypothesis testing, alternative hypothesis
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012