162k views
5 votes
Jessica scores 1825 on the sat. ashley scores 28 on the act assuming that both tests measure the same thing who has the higher score report the z-scores for both students

User Angels
by
7.2k points

1 Answer

5 votes
With 1026 being the mean score on the SAT and StDev of 209, Jessica has a score of 799/209 z-scores above the mean. Her z-score would be 3.823. The mean of the ACT and StDev are 20.8 and 4.8, respectively. A 28 ACT score would be 7.2/4.8 z-scores above the mean, for a z = 1.500. This means that Jessica has the higher z-score.
User HariHaravelan
by
7.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories