Question

The mean number of employee sick days used per week at a company is 6.4 with a standard deviation of 1.5 days. What proportion of weeks would you expect to have more than 7 employee sick days used?

Answer 1

Given the z-score formula,

`\begin{gathered} z=(x-\mu)/(\sigma) \\ \text{Where x =7} \\ \mu=6.4\text{ and} \\ \sigma=1.5 \\ z=(7-6.4)/(1.5)=(0.6)/(1.5)=0.4 \end{gathered}`

Given the z-score of 0.4