Carla and Patrisse began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Carla took a test in Math and earned a 77.7, and Patrisse took a test in English and earned a 68.7. Use the fact that all the students' test grades in the Math class had a mean of 71.2 and a standard deviation of 10.1, and all the students' test grades in English had a mean of 64.1 and a standard deviation of 9.9 to answer the following questions. a) Calculate the z-score for Carla's test grade. z=z= [Round your answer to two decimal places.] b) Calculate the z-score for Patrisse's test grade. z=z= [Round your answer to two decimal places.] c) Which person did relatively better? Carla Patrisse They did equally well.
Carla and Patrisse began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Carla took a test in Math and earned a 77.7, and Patrisse took a test in English and earned a 68.7. Use the fact that all the students' test grades in the Math class had a mean of 71.2 and a standard deviation of 10.1, and all the students' test grades in English had a mean of 64.1 and a standard deviation of 9.9 to answer the following questions. a) Calculate the z-score for Carla's test grade. z=z= [Round your answer to two decimal places.] b) Calculate the z-score for Patrisse's test grade. z=z= [Round your answer to two decimal places.] c) Which person did relatively better? Carla Patrisse They did equally well.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 26PFA
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Carla and Patrisse began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Carla took a test in Math and earned a 77.7, and Patrisse took a test in English and earned a 68.7. Use the fact that all the students' test grades in the Math class had a mean of 71.2 and a standard deviation of 10.1, and all the students' test grades in English had a mean of 64.1 and a standard deviation of 9.9 to answer the following questions.
a) Calculate the z-score for Carla's test grade.
z=z= [Round your answer to two decimal places.]
b) Calculate the z-score for Patrisse's test grade.
z=z= [Round your answer to two decimal places.]
c) Which person did relatively better?
a) Calculate the z-score for Carla's test grade.
z=z= [Round your answer to two decimal places.]
b) Calculate the z-score for Patrisse's test grade.
z=z= [Round your answer to two decimal places.]
c) Which person did relatively better?
- Carla
- Patrisse
- They did equally well.
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