Posted by **Anonymous** on Tuesday, May 22, 2012 at 12:09pm.

Consider again the data in problem #6. Suppose that in the aerobic exercise group we also measured the number of hours of aerobic exercise per week and the mean is 5.2 hours with a standard deviation of 2.1 hours. The sample correlation is -0.42.

Exercise Group N Mean Std Dev

Weight Training 20 49.7 10.2

Aerobic Exercise 20 43.1 11.1

Stretching/Yoga 20 57.0 12.5

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