One year terry 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 2.85 . also, karla had the lowest era of any female pitcher at the school with an era of 2.95 . for the males, the mean era was 4.893 and the standard deviation was 0.949 . for the females, the mean era was 4.348 and the standard deviation was 0.997 . find their respective z-scores. which player had the better year relative to their peers, terry or karla ? (note: in general, the lower the era, the better the pitcher.)