the standard deviation of the matched-pair differences is ________.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
Related questions
Question
The Dean of the Business School at State University would like to test the hypothesis that no difference exists between the average final exam grades for the Introduction to Marketing course and the Introduction to Finance course. A random sample of eight students who took both courses was selected and their final exam grades for each course are shown below.
If Population 1 is defined as the Marketing exam scores and Population 2 is defined as the Finance exam scores, the standard deviation of the matched-pair differences is ________.
|
Student
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
|
Marketing
|
82
|
86
|
74
|
93
|
90
|
76
|
87
|
100
|
|
Finance
|
76
|
91
|
70
|
79
|
96
|
70
|
85
|
81
|
If Population 1 is defined as the Marketing exam scores and Population 2 is defined as the Finance exam scores, the standard deviation of the matched-pair differences is ________.
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