Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use Table for the specified sample size and level of significance to determine whether a linear correlation exists.

r = -0.89 when n = 6 at α = 0.05

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a = 0.05 a = 0.01 0.950 0.990 5 0.878 0.959 0.811 0.917 7 0.754 0.875 0.707 0.834 0.666 0.798 10 0.632 0.765 11 0.602 0.735 12 0.576 0.708 13 0.553 0.684 14 0.532 0.661 15 0.514 0.641 16 0.497 0.623 17 0.482 0.606 18 0.468 0.590 19 0.456 0.575 20 0.444 0.561 22 0.423 0.537 27 0.381 0.487 32 0.349 0.449 37 0.325 0.418 42 0.304 0.393 47 0.288 0.372 52 0.273 0.354 62 0.250 0.325 72 0.232 0.302 82 0.217 0.283 92 0.205 0.267 102 0.195 0.254