null hypothesis, definition of

Null Hypothesis

The assumption that any observed difference between two samples of a statistical population is purely accidental and not due to systematic causes.

News & Blog articles where 'null hypothesis' used:
  • Climate Change: What’s the Worst Case?
    Reposted from Dr. Judith Curry’s Climate Etc. Posted on August 22, 2019 by curryja | by Judith Curry My new manuscript is now available. A link to my new paper ‘Climate Change: What’s the Worst Case?’ is provided here [worst case paper final...
  • Raising the bar on statistical significance
    I was searching the early edition of PNAS for the abstract of yet another sloppy “science by press release” that didn’t bother to give the the title of the paper or the DOI, and came across this paper, so it … Continue reading...
  • Did Global Warming Prevent a Record-Breaking D.C. Snowstorm?
    Guest post by Paul C. “Chip” Knappenberger and Patrick J. Michaels We haven’t seen any media stories relating global warming to the Wednesday’s weather in D.C. We are certain that this would not have been the case had more than …...

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