X test

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X test [′eks ‚test]

(statistics)

A one-sample test which rejects the hypothesis μ = μ_Hin favor of the alternative μ > μ_HifX- μ_H≥cwherecis an appropriate critical value,Xis the arithmetic mean of observations, μ_His a given number, and μ is the (unknown) expected value of the random variableX.

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