One year Perry 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 2.83. Also, Karla had the lowest ERA of...

Extracted text: One year Perry 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 2.83. Also, Karla had the lowest ERA of any female pitcher at the school with an ERA of 3.37. For the males, the mean ERA was 3.771 and the standard deviation was 0.861. For the females, the mean ERA was 4.979 and the standard deviation was 0.508. Find their respective z-scores. Which player had the better year relative to their peers, Perry or Karla? (Note: In general, the lower the ERA, the better the pitcher.) Perry had an ERA with a z-score of Karla had an ERA with a z-score of (Round to two decimal places as needed.)