Ermias and Trinidad began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Ermias took a test in Art History and earned a 76.5, and Trinidad took a test in Social Studies and earned a 70.8. Use the fact that all the students' test grades in the Art History class had a mean of 76.7 and a standard deviation of 10.5, and all the students' test grades in Social Studies had a mean of 64.5 and a standard deviation of 8.1 to answer the following questions. a) Calculate the z-score for Ermias's test grade. [Round your answer to two decimal places.] b) Calculate the z-score for Trinidad's test grade. z = They did equally well. [Round your answer to two decimal places.] c) Which person did relatively better? O Ermias O Trinidad
Ermias and Trinidad began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Ermias took a test in Art History and earned a 76.5, and Trinidad took a test in Social Studies and earned a 70.8. Use the fact that all the students' test grades in the Art History class had a mean of 76.7 and a standard deviation of 10.5, and all the students' test grades in Social Studies had a mean of 64.5 and a standard deviation of 8.1 to answer the following questions. a) Calculate the z-score for Ermias's test grade. [Round your answer to two decimal places.] b) Calculate the z-score for Trinidad's test grade. z = They did equally well. [Round your answer to two decimal places.] c) Which person did relatively better? O Ermias O Trinidad
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![Ermias and Trinidad began arguing about who did better on their tests, but they couldn't decide who did
better given that they took different tests. Ermias took a test in Art History and earned a 76.5, and Trinidad
took a test in Social Studies and earned a 70.8. Use the fact that all the students' test grades in the Art
History class had a mean of 76.7 and a standard deviation of 10.5, and all the students' test grades in Social
Studies had a mean of 64.5 and a standard deviation of 8.1 to answer the following questions.
a) Calculate the z-score for Ermias's test grade.
z =
[Round your answer to two decimal places.]
b) Calculate the z-score for Trinidad's test grade.
z =
Trinidad
O They did equally well.
[Round your answer to two decimal places.]
c) Which person did relatively better?
O Ermias](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7248d714-2630-4255-aa39-67ac8596a103%2F0efeef1d-3f56-471a-b238-96d674b1a1d1%2Fee3e0kr_processed.png&w=3840&q=75)
Transcribed Image Text:Ermias and Trinidad began arguing about who did better on their tests, but they couldn't decide who did
better given that they took different tests. Ermias took a test in Art History and earned a 76.5, and Trinidad
took a test in Social Studies and earned a 70.8. Use the fact that all the students' test grades in the Art
History class had a mean of 76.7 and a standard deviation of 10.5, and all the students' test grades in Social
Studies had a mean of 64.5 and a standard deviation of 8.1 to answer the following questions.
a) Calculate the z-score for Ermias's test grade.
z =
[Round your answer to two decimal places.]
b) Calculate the z-score for Trinidad's test grade.
z =
Trinidad
O They did equally well.
[Round your answer to two decimal places.]
c) Which person did relatively better?
O Ermias
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