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15. A researcher believes that students do better on a reading test when hearing a constant background sound. She divides a group of students into three random groups, has them read a passage (with different background sounds), and then gives them a test. The following are her results: Constant Sound 7 10 9. 4 8 Random Sound 6. 8. 7 2 4 1 No Sound 2 4 8 3 4 2 Can she say that there is a significant difference between any of the types of sounds?

15. A researcher believes that students do better on a reading test when hearing a constant background sound. She divides a group of students into three random groups, has them read a passage (with different background sounds), and then gives them a test. The following are her results: Constant Sound 7 10 9. 4 8 Random Sound 6. 8. 7 2 4 1 No Sound 2 4 8 3 4 2 Can she say that there is a significant difference between any of the types of sounds?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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
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15. A researcher believes that students do better on a reading test when hearing a constant background sound. She divides a group of students into three random groups, has them read a passage (with different background sounds), and then gives them a test. The following are her results: Constant Sound 7 6. 10 9. 8. Random Sound 8 7 2 4 1 No Sound 2 4 8 3 4 6. Can she say that there is a significant difference between any of the types of sounds?
Transcribed Image Text:15. A researcher believes that students do better on a reading test when hearing a constant background sound. She divides a group of students into three random groups, has them read a passage (with different background sounds), and then gives them a test. The following are her results: Constant Sound 7 6. 10 9. 8. Random Sound 8 7 2 4 1 No Sound 2 4 8 3 4 6. Can she say that there is a significant difference between any of the types of sounds?
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