What z-score is associated with the lowest 2.5% of a normal distribution?
A) -.67
B) +.67
C) -1.96
D) +1.96

Question

Quizplus · Accepted Answer

The z-score associated with the lowest 2.5% of a normal distribution is found in the left tail of the distribution and is equal to -1.96. This is because 2.5% of the area under the curve is in the left tail, and the z-score that corresponds to this area is -1.96. Therefore, choice C (-1.96) is the correct answer.

What Z-Score Is Associated with the Lowest 2