Determine the z-score associated with an area of 0.4925 from the mean of a normal distribution to that negative z-score.
A) 2.43
B) -2.43
C) -2.4
D) 2.4
E) -2.44

Question

Quizplus · Accepted Answer

Since the area is to the left of the mean, we need to find the negative z-score. Using a standard normal distribution table, we see that the closest area to 0.4925 is 0.4918, which corresponds to a z-score of 2.43. However, since we need a negative z-score, the answer is -2.43. Therefore, the best choice is B.

Determine the Z-Score Associated with an Area of 0