Question

Use the before/after weights listed below.
a. Test for a correlation between the before and after weights.
b. If each subject were to weigh exactly the same after the diet as before, what would be the value of the linear correlation coefficient?
c. If all subjects were to lose 5% of their weight from the diet, what would be the value of the linear correlation coefficient found from the before/after weights?
d. What do the preceding results suggest about the suitability of correlation as a tool for testing the effectiveness of the diet?


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  • CreatedMay 03, 2015
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