A First Course in Probability (10th Edition)
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ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Now Lynn takes a different approach. They collect another two samples - GPA from students taking a semester of in-class courses, and then the same students' GPA when they are taking a semester of online courses. The data set is below. They predict that they will find a difference between in-class GPA and online GPA for the same students.
GPA
| Student | In Class GPA | Online GPA |
|---|---|---|
|
Amy |
4.0 |
3.5 |
| Brad | 3.5 | 2.2 |
| Caroline | 3.7 | 2.0 |
| Dan | 3.5 | 3.5 |
| Emily | 3.6 | 3.3 |
| Frank | 3.2 | 3.2 |
| George | 3.3 | 2.1 |
What is the difference between mean in-class GPA and mean online GPA for the same students? Round your answer to two decimal places.
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