null hypothesis

English

Noun

null hypothesis (plural null hypotheses)

  1. (statistics) A hypothesis set up to be nullified or refuted in order to support an alternative hypothesis. When used, the null hypothesis is presumed true until statistical evidence in the form of a hypothesis test indicates otherwise. Therefore, the null and the alternative hypothesis must be mutually exclusive and exhaustive.
    • 2021 April, Jenna Birnbohm-Kaminski, “A Study of Undergraduate Major on the Youth Electorate within the Bryant Community”, in Bryant University‎[1], archived from the original on 21 May 2023, page 11:
      A two proportion z-test allows for a comparison of two proportions, with the null hypothesis being that they are the same.

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