What is the z-score of sample X, if $n = 196, mu= 71, St. Dev. =42, and mu_X =83$ ?

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Answer 1 · 2016-08-17T06:43:02

$z=0.286$

Given -

$n=196$
$mu=71$
$sigma=42$
$mu_x=83$

$z=(mu-mu_x)/sigma=(71-83)/42=(-12)/42=-0.286$

What is the z-score of sample X, if n = 196, mu= 71, St. Dev. =42, and mu_X =83n = 196, mu= 71, St. Dev. =42, and mu_X =83?