Suppose I find that the correlation between optimism and friendliness is .529. I test 15 people for both factors. First, calculate the degrees of freedom. Using Table B-4, a two-tailed test, and the usual .05 level of certainty, do I meet the cutoff for significance? Y N. Next, calculate the Coefficient of Determination Using the boundaries we discussed, are the results Very Meaningful, Moderately meaningful Not Meaningful