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At St. Algebra College, the 200 freshmen enrolled in introductory biology took a final exam on which their mean score was 72 and their standard deviation was 6. The following table presents the grades of 10 students. Convert each into a Z score and determine the number of people who scored higher or lower than each of the 10 students. (HINT: Multiply the appropriate proportion by N and round the result.) X i Z score Number of Students Above Number of students Below 60 57 55 67 70 72 78 82 90 95

BuyFind

Essentials Of Statistics

4th Edition
HEALEY + 1 other
Publisher: Cengage Learning,
ISBN: 9781305093836
BuyFind

Essentials Of Statistics

4th Edition
HEALEY + 1 other
Publisher: Cengage Learning,
ISBN: 9781305093836

Solutions

Chapter
Section
Chapter 5, Problem 5.5P
Textbook Problem

At St. Algebra College, the 200 freshmen enrolled in introductory biology took a final exam on which their mean score was 72 and their standard deviation was 6. The following table presents the grades of 10 students. Convert each into a Z score and determine the number of people who scored higher or lower than each of the 10 students. (HINT: Multiply the appropriate proportion by N and round the result.)

X i Z score Number of Students Above Number of students Below
60
57
55
67
70
72
78
82
90
95

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