What is the z-score of X, if n = 20, mu=20, SD =3, and X =31?

anudoneddbv 2022-07-17 Answered
What is the z-score of X, if n = 20, μ = 20 , SD =3, and X =31?
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Answers (1)

Mireya Hoffman
Answered 2022-07-18 Author has 14 answers
z-score of variable x with mean μ , and standard deviation σ is given by x - μ σ n
As μ = 20 , σ = 3 , n = 20 and x = 31
z-score is 31 - 20 3 20 = 11 20 3 = 16.4

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