Question

For a confidence level of 92%find the critical value for a normally distributed variable. The sample mean is normally distributed if the population standard deviation is known.

Answer 1

1.751

Explanation:

Since at the 92% confidence level:

`\begin{gathered} \alpha=1-92\% \\ \\ \alpha=1-0.92=0.08 \\ \\ (\alpha)/(2)=(0.08)/(2)=0.04 \\ \\ Z_{(\alpha)/(2)}=Z_(0.04)=1.751 \end{gathered}`

So the correct answer is 1.751