Definition of null hypothesis in English:

null hypothesis


  • (in a statistical test) the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.

    • ‘It then reviews demographic differences within regions and tests a series of null hypotheses proposing no significant differences between regions based on the demographic factors.’
    • ‘We performed significance tests of the null hypothesis of constant population size for both data sets.’
    • ‘Using their method requires the ability to draw samples from an approximation to the joint distribution of the test statistics when all null hypotheses are true.’
    • ‘These analyses qualitatively or explicitly test null hypotheses of homogeneity of allele frequencies between or among populations.’
    • ‘Based on the statistical results, the null hypothesis is rejected for all variables.’


null hypothesis