Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use the table on the right for the specified sample size and level of significance to determine whether a linear correlation exists. r=0.81 when n=10 at a = 0.01 Does a linear correlation exist? A linear correlation does not exist. OA linear correlation exists. Correlation Coefficient, r 545698 =0.05 a=0.01 0.950 0.990 0.878 0.959 0.811 0.917 7 0.754 0.875 0.707 0.834 9 0.666 0.798 10 0.632 0.765