Midterm Practice Problems

4 you run a study with a sample of 250 people where

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Unformatted text preview: correlated with r= .25. How much variance in exam grades is NOT due to depression? 4. You run a study with a sample of 250 people where you are measuring caffeine intake and productivity. You find a correlation between caffeine intake and productivity of r= 0.23. Your hypothesis was that caffeine intake and productivity were correlated with r=0.54. Is your obtained correlation significantly different from your theoretical correlation? 5. Is your obtained correlation of r=0.23 significantly different from z...
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This document was uploaded on 03/14/2014 for the course STAT 2215Q at UConn.

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