Given that z is a standard normal random variable, what is the value of z if the area between -z and z is 0.901?
A) 1.96
B) -1.96
C) $\pm$ 0.4505
D) $\pm$ 1.65

Question

Quizplus · Accepted Answer

The area between -z and z being 0.901 implies that the tails each have an area of (1-0.901)/2 = 0.0495. Looking up 0.0495 in the standard normal distribution table gives a z-value of approximately 1.65.

Given That Z Is a Standard Normal Random Variable, What ±\pm±

Given That Z Is a Standard Normal Random Variable, What $\pm$