X test

X test

[′eks ‚test]

(statistics)

A one-sample test which rejects the hypothesis μ = μ_H in favor of the alternative μ > μ_H if X- μ_H ≥ c where c is an appropriate critical value, X is the arithmetic mean of observations, μ_H is a given number, and μ is the (unknown) expected value of the random variable X.