Question

Using the z score formula use the information below to find the value of

Answer 1

Step-by-step explanation

Given that

`\begin{gathered} z=-4.80 \\ x=23.55 \\ \mu=32.67 \end{gathered}`

Using the z-score formula;

`\begin{gathered} z=(x-\mu)/(\sigma) \\ -4.80=(23.55-32.67)/(\sigma) \\ -4.80\sigma=-9.12 \\ \sigma=(-9.12)/(-4.80) \\ \sigma=1.9 \end{gathered}`

Answer: 1.9