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Massage therapy for boxers. Refer to the British Journal of Sports Medicine (April 2000) study of the effect of massage on boxing performance, given Exercise. Find and interpret the values of r and r2 for the simple linear regression relating the blood lactate concentration and the boxer's perceived recovery.
Exercise Massage therapy for boxers. The British Journal of Sports Medicine (April 2000) published a study of the effect of massage on boxing performance. Two variables measured on the boxers were blood lactate concentration (mM) and the boxer's perceived recovery (28-point scale). Based on information provided in the article, the data in the table were obtained for 16 five-round boxing performances, where a massage was given to the boxer between rounds. Conduct a test to determine whether blood lactate level (y) is linearly related to perceived recovery (x). Use α = .10.
Blood Lactate
Level Perceived Recovery
3.8
7
4.2
4.8
11
4.1
12
5.0
5.3
13
2.4
17
3.7
5.8
18
6.0
5.9
21
6.3
5.5
20
6.5
24
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