Question
Janai and Alexei began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests.
Janai and Alexei began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Janai took a test in English and earned a 71, and Alexei took a test in Science and earned a 64. Use the fact that all the students' test grades in the English class had a mean of 72.5 and a standard deviation of 11.6, and all the students' test grades in Science had a mean of 63.9 and a standard deviation of 11 to answer the following questions. a) Calculate the z-score for Janai's test grade. z= b) Calculate the z-score for Alexei's test grade. z= c) Which person did relatively better?
- Janai
- Alexei
- They did equally well.
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