February 26, 2017

Homework Help: Statistics!!!

Posted by Ethel on Monday, July 8, 2013 at 4:21pm.

b. The correlation between the number correct on a math test and the time it takes to complete the test is -.45. Test whether this correlation is significant for 80 children at the .05 level of significance. Choose either a one-or two-tailed test and justify your choice.

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