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Ten pairs of points yielded a correlation coefficient r of 0.73. If alpha = 0.05, what is the decision that you will make assuming a two-tail test?

A correlation coefficient was computed for n = 20, alpha = 0.05, and r = 0.692. Using the t-test for the correlation coefficient, what is the critical value, assuming a one-tail positive test?

If a correlation coefficient was find outd for n = 15, alpha = 0.01, and r = 0.85, what is the test value found using the t-test?

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