Question

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

Answer 1

`z=0.286`

Explanation:

Given -

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

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