Question

Calculate the standard score (z-score) of the given sample mean. Round your answer to two decimal places.

μ=45
and σ=11
; n=50
; x¯=47

Answer 1

1.29

Explanation:

`\displaystyle Z=\frac{\bar{x}-\mu}{(\sigma)/(√(n))}=(47-45)/((11)/(√(50)))\approx1.29`