Find the critical value $\mathrm { z } _ { \alpha / 2 }$ that corresponds to a 93% confidence level.
A) 2.70
B) 1.48
C) 1.81
D) 1.96

Question

Quizplus · Accepted Answer

To find the critical value, we need to look for the z-score that corresponds to the area between the middle 93% of the normal distribution, leaving 3.5% (0.035) in each tail. Using a standard normal distribution table or calculator, we can find that the z-score that corresponds to 0.035 in one tail is approximately 1.81. Therefore, the critical value $\mathrm { z } _ { \alpha / 2 }$ that corresponds to a 93% confidence level is 1.81.

Find the Critical Value zα/2\mathrm { z } _ { \alpha / 2 }zα/2​

Find the Critical Value $\mathrm { z } _ { \alpha / 2 }$