A correlation coefficient computed for n 18 and a 10 signif

A correlation coefficient computed for n = 18 and a 10% significance level is 0.692. Using a t-test for significance of the correlation coefficient, what is the largest critical value?

Solution

for df = n-2 = 16, t(alpha/2) = t(0.05) = 1.746 (From t table)

+1.746