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March 31, 2015

March 31, 2015

Posted by **SHelia** on Saturday, February 5, 2011 at 4:48pm.

Number of cups Stress level

3 5

2 3

4 3

6 9

5 4

1 2

7 10

3 5

Total Numbers: 8

Correlation: 0.8519

Did I answer this correctly?

- Statistics -
**Damon**, Saturday, February 5, 2011 at 5:01pmYes, using http://easycalculation.com/statistics/correlation.php

I get .8519

- Statistics -
**SHelia**, Saturday, February 5, 2011 at 5:11pmThank you for your help. I used that same webpage for help but I still wasn't sure that I was doing it correctly. Thanks for double checking.

- Statistics -
**sharon**, Tuesday, March 27, 2012 at 12:48amPlease note that stress variable can assume only two values high or low. Is it not nominal ? (You are told that this study was looking at the effects of stress (low or high) on consumption of caffeine).

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