Statistical Null Hypothesis

A Statistical Null Hypothesis is a null hypothesis that an observation sample is the result of chance/random process.

• Context:
  • It can be an input to a Statistical Hypothesis Test Task.
  • …
• Counter-Example(s):
  • a Legal Null Hypothesis, such as the defendant is not guilty..
• See: Statistical Alternative Hypothesis.

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References

2009

• http://www.introductorystatistics.com/escout/main/Glossary.htm
  • QUOTE: The presumed model (such as that of a fair coin) in hypothesis testing. The data provide a measure of how weak or strong the evidence for or against this null hypothesis is; it is the model of step 1 if the six-step method is being used.

2008

• (Upton & Cook, 2008) ⇒ Graham Upton, and Ian Cook. (2008). “A Dictionary of Statistics, 2nd edition revised." Oxford University Press. ISBN:0199541450
  • QUOTE: The hypothesis, in a hypothesis test, which is used to obtain the probability distribution, and hence the critical region, of the statistic used in the test. The phrase ‘null hypothesis’ was introduced by Sir Ronald Fisher in 1935.

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