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...<math>\Chi^2</math> test) is a [[statistical hypothesis test]]. It usually tests the [[hypothesis]] that "the experimental data does not differ from untreat There are three main groups of tests: ...

Chi-square distribution is primarily used in [[statistical significance]] tests and [[Confidence interval|confidence intervals]].<ref>{{Cite web|title=1.3. ...

...ian of a [[sample]] will be [[bias]]ed, which is an unwanted property of a statistical [[estimator]]. Definition (c) does not have that disadvantage, but it is mo ...everal ways. Mean is a better measure in many cases, because many of the [[statistical test]]s can use mean and [[standard deviation]] of two observations to comp ...

There are two hypotheses in statistical tests, called the [[null hypothesis]], often written as <math>H_0</math>, and the * [[Statistical hypothesis test]] ...

[[Category:Statistical tests]] ...

...arm journal and found the readership much increased.<ref>Murphy D.R. 1947. Tests prove short words and sentences get best readership. ''Printer's Ink'' '''2 ...e conference |url=http://www.cs.cmu.edu/~callan/Papers/cikm01b.ps |title=A statistical model for scientific readability |author=Luo Si |date=2001 |publisher=CIKM ...