Problem

Weight Training. Two cross-country running teams participated in a (hypothetical) study in...

Weight Training. Two cross-country running teams participated in a (hypothetical) study in which a fraction of each team used weight training to supplement a running workout The remaining runners did not use weight training. At the end of the season, the mean improvement in race times (in seconds) was recorded in the following table.

 

Time

Improvement with Weight Training

Time

Improvement without Weight Training

Team

Average Time Improvement

Gazelles

10 s

2 s

6.0 s

Cheetahs

9 s

1. s

6.2 s

Resolve the apparent inconsistency in these results by finding the percentage of each team that used weight training.

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Solutions For Problems in Chapter 3E