r (Sample Correlation Coefficient) FIGURE 14.6 .95 confidence intervals around r for p for n = 3, 4..... 400. Enter r on base axis and read p's where r- and n-values intersect. For example, the .95 confidence interval for p if r = +.6 and n - 50 is .4 to .76. (Reprinted with E. S. Pearson and H. O. Hartley, eds., Biometrika Tables for Statisticians, 2nd ed. [Cambridge: Cambridge University Press, 1962], by permission of the Biometrika Trustees and Cambridge University Press.)