One year Alex had the lowest ERA​ (earned-run average, mean number of runs yielded per nine innings​ pitched) of any male pitcher at his​ school, with an ERA of . ​Also, had the lowest ERA of any female pitcher at the school with an ERA of . For the​ males, the mean ERA was and the standard deviation was . For the​ females, the mean ERA was and the standard deviation was . Find their respective​ z-scores. Which player had the better year relative to their​ peers, or ​? ​(Note: In​ general, the lower the​ ERA, the better the​ pitcher.) had an ERA with a​ z-score of nothing. had an ERA with a​ z-score of nothing.