Question

In each situation below, calculate the standardized score (or z-score) for the value x.

(a) Mean μ = 0, standard deviation σ = 1, value x = 1.7. z =

(b) Mean μ = 9, standard deviation σ = 4, value x = 5. z =

(c) Mean μ = 14, standard deviation σ = 7, value x = 0. z =

(d) Mean μ = -15, standard deviation σ = 15, value x = -60. z =

Answer 1

SOLUTION:

using z-score formula

z =X -/

z=1.7-0/1

z=1.7

B

using z-score formula

z =X -/

z=5-9/4

z=-1

C

using z-score formula

z =X -/

z=0-14/7

z=-2

D

using z-score formula

z =X -/

z=-60-15/15

z=-5