Answer
The benefit of using the z-scores to compare interpretations from 2 different sets of data is that the z-score helps in calculating the probability within the normal distribution and helps in comparing the scores from different normal distributions.
Work Step by Step
The z-score is used to compare observations from two different sets of data, that is, how many standard deviations above or below the population mean a raw score is, and on the basis of z-score, it helps to interpret whether the score is relatively less or relatively better for the dataset.