What is the z-score of X, if $μ = 24$ $mu= 24$ , SE =3, and X =31?

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Answer 1 · 2015-12-16T01:05:57

$z = 2.33$ $z=2.33$

$z = \frac{x - μ}{S E} = \frac{31 - 24}{3} = \frac{7}{3} = 2.33$ $z=(x-mu)/(SE)=(31-24)/3=7/3=2.33$

What is the z-score of X, if mu= 24μ=24mu= 24, SE =3, and X =31?