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Derek and Inesh began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Derek took a test in Social Studies and earned a 78.6, and Inesh took a test in Science and earned a 71.2. Use the fact that all the students' test grades in the Social Studies class had a mean of 75.8 and a standard deviation of 9,4, and all the students' test grades in Science had a mean of 62.7 and a standard deviation of 10 to answer {he following questions. a) Calculate the z-score for Derek's test grade. = Z b) Calculate the z-score for Inesh's test grade. c) Which person did relatively better? O Derek O Inesh O They did equally well. 凶

Derek and Inesh began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Derek took a test in Social Studies and earned a 78.6, and Inesh took a test in Science and earned a 71.2. Use the fact that all the students' test grades in the Social Studies class had a mean of 75.8 and a standard deviation of 9,4, and all the students' test grades in Science had a mean of 62.7 and a standard deviation of 10 to answer {he following questions. a) Calculate the z-score for Derek's test grade. = Z b) Calculate the z-score for Inesh's test grade. c) Which person did relatively better? O Derek O Inesh O They did equally well. 凶

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Derek and Inesh began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Derek took a test in Social Studies and earned a 78.6, and Inesh took a test in Science and earned a 71.2. Use the fact that all the students' test grades in the Social Studies class had a mean of 75.8 and a standard deviation of 9.4, and all the students' test grades in Science had a mean of 62.7 and a standard deviation of 10 to answer the following questions. a) Calculate the z-score for Derek's test grade. 2 = b) Calculate the z-score for Inesh's test grade. = Z c) Which person did relatively better? O Derek O Inesh O They did equally well. Submit Question Ten MacBook Pro 二. DII esc F1 F2 F3 F5 F7 FB 23 24 4 Q W tab D caps lock B N (↑) R 四风_
Transcribed Image Text:Derek and Inesh began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Derek took a test in Social Studies and earned a 78.6, and Inesh took a test in Science and earned a 71.2. Use the fact that all the students' test grades in the Social Studies class had a mean of 75.8 and a standard deviation of 9.4, and all the students' test grades in Science had a mean of 62.7 and a standard deviation of 10 to answer the following questions. a) Calculate the z-score for Derek's test grade. 2 = b) Calculate the z-score for Inesh's test grade. = Z c) Which person did relatively better? O Derek O Inesh O They did equally well. Submit Question Ten MacBook Pro 二. DII esc F1 F2 F3 F5 F7 FB 23 24 4 Q W tab D caps lock B N (↑) R 四风_
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