Students wanted to see if exercising (in particular doing jumping jacks) would help people memorize a list of 10 words that were read to them. They wanted to compare this with the same test of memorizing words while the subjects were sitting down.
a. Suppose you had 20 subjects participating in this study. Describe how you would conduct this study with a paired design with repeated measures.
b. If you found a significant difference in the number of words memorized, could you conclude exercising caused the difference?