The Z scores of two tests scores are + 1.2 and + 1.5. To obtain the area between these scores________.
A) subtract the Z scores and find the area of the difference in the Z score table.
B) find the area between each score and the mean in the Z score table and then subtract the smaller area from the larger area.
C) find the area between each score and the mean in the Z score table and then subtract the difference between them from 100%.
D) find the area beyond each score in the Z score table and subtract the difference between the areas from the mean.

Question

Quizplus · Accepted Answer

To obtain the area between two Z scores, we need to find the area between each score and the mean in the Z score table and then subtract the smaller area from the larger area. This is because the Z score table only provides the area between the mean and a given Z score, not between two different Z scores. Therefore, we need to break the problem down into two parts and subtract the smaller area from the larger area to obtain the area between the two Z scores.

The Z Scores of Two Tests Scores Are + 1