Question

k 4 Quizfor instructional material to completeX-H-if x= 11.9,1 = 27.8, 0 = 5.8, an0teger or decimal rounded to two decin

Answer 1

Solution:

Given the z-score formula;

$z=\frac{\bar{x}-\mu}{\sigma}$

And given the parameters;

$\begin{gathered} \bar{x}=11.9,\mu=27.8,\sigma=5.8 \\ \\ \end{gathered}$

Thus;

$\begin{gathered} z=\frac{11.9-27.8}{5.8} \\ \\ z=-\frac{15.9}{5.8} \\ \\ z=-2.74 \end{gathered}$

ANSWER:

$z=-2.74$