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what is a nonparametric test? What is a parametric test

what is a nonparametric test? What is a parametric test

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NON PARAMETRIC TEST

Parametric and non parametric test are statistical method used to study about the population which will be helpful in making correct decision of our interest.

Nonparametric test : A non parametric test sometimes called a distribution free test which means normality assumption is not needed to conduct nonparametric test example mann - whitney test.

Parametric test : parametric test is a test procedure based on the assumptions that the given data are distributed according to some well known distribution eg; normal, poisson etc.

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