Janai and Aaliyah began arguing about who did better on their tests, but the decide who did better given that they took different tests. Janai took a test earned a 76.5, and Aaliyah took a test in Social Studies and earned a 70.2. U all the students' test grades in the Math class had a mean of 74.7 and a stand of 11.6, and all the students' test grades in Social Studies had a mean of 61 a deviation of 10.8 to answer the following questions. a) Calculate the z-score for Janai's test grade. 2= b) Calculate the z-score for Aaliyah's test grade. Z= [Round your answer to two decimal places.] Janai Aaliyah They did equally well. [Round your answer to two decimal places.] c) Which person did relatively better?

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Janai and Aaliyah 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 Math and
earned a 76.5, and Aaliyah took a test in Social Studies and earned a 70.2. Use the fact that
all the students' test grades in the Math class had a mean of 74.7 and a standard deviation
of 11.6, and all the students' test grades in Social Studies had a mean of 61 and a standard
deviation of 10.8 to answer the following questions.
a) Calculate the z-score for Janai's test grade.
2=
b) Calculate the z-score for Aaliyah's test grade.
2=
[Round your answer to two decimal places.]
Janai
Aaliyah
They did equally well.
c) Which person did relatively better?
[Round your answer to two decimal places.]
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Question Help: Message instructor
Transcribed Image Text:Janai and Aaliyah 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 Math and earned a 76.5, and Aaliyah took a test in Social Studies and earned a 70.2. Use the fact that all the students' test grades in the Math class had a mean of 74.7 and a standard deviation of 11.6, and all the students' test grades in Social Studies had a mean of 61 and a standard deviation of 10.8 to answer the following questions. a) Calculate the z-score for Janai's test grade. 2= b) Calculate the z-score for Aaliyah's test grade. 2= [Round your answer to two decimal places.] Janai Aaliyah They did equally well. c) Which person did relatively better? [Round your answer to two decimal places.] Submit Question Question Help: Message instructor
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