One year Sam 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 2.67. Also, Tammy had the lowest ERA of any female pitcher at the school with an ERA of 2.96. For the males, the mean ERA was 4.352 and the standard deviation was 0.567. For the females, the mean ERA was 4.642 and the standard deviation was 0.719. Find their respective z-scores. Which player had the better year relative to their peers, Sam or Tammy? (Note: In general, the lower the ERA, the better the pitcher.) Sam had an ERA with a z-score of. Tammy had an ERA with a z-score of (Round to two decimal places as needed.) Which player had a better year in comparison with their peers? O A. Tammy had a better year because of a higher z-score. O B. Sam had a better year because of a lower z-score. O C. Tammy had a better year because of a lower z-score. O D. Sam had a better year because of a higher z-score. Statcrunch Next MAR 25 . . . atv A