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Secure https t/Player Test aspx?test 156025384&oenterwin; yes Hwww.mathxLcom/student ST2:0-a01 statistical R asoning and Application Quiz: Chapter 3 Quiz Time Remaining: 00:45:23 Submit Quiz This Quiz: 8 pts po 6 of 8 (5 complete) EQuestion Help One year Ron had the lowest ERA (eamed run average, mean number of runs yielded per nine innings pitchep) of any male pitcher at his school, with an ERA ol 253. Also, Karla had the lowest ERA of any lemale pitcher at the school with an ERA of 331. For the males, the inean ERA was 4.18 and the standard deviation was 0.508. For the females, the mean ERA was 4.599 and the standard deviation was 0.555. Find their respective z-scores. Which player had the better year relative to their peers, Ron or Karla? (Note: In general, the lower the ERA, the better the pitcher.) Ron had an ERA with a z-score of Karla 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. Karla had a better year because of a lower z-score. O B. Karla had a better year because of a higher z-score. O C. Ron had a better year because of a lower z-score. O D. Ron had a better year because of a higher z score. ick to select your answer(s). 11:59pm

Explanation / Answer

as z sc0re =(X-,mean)/std deviation

Ron 's z score =(2.53-4.181)/0.508 =-3.25

Karla z score =(3.31-4.599)/0.555 =-2.32

option B is correct

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