One year Hank 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 2.79. Also, Jane had the lowest ERA of any female pitcher at the school with an ERA of 2.98. For the males, the mean ERA was 4.753 and the standard deviation was 0.598. For the females, the mean ERA was 4.906 and the standard deviation was 0.951. Find their respective z-scores. Which player had the better year relative to their peers, Hank or Jane? (Note: In general, the lower the ERA, the better the pitcher.)
Hank had an ERA with a z-score of ( )
Jane had an ERA with a z-score of ( )