Consider the two classes indicated by `H' and `O' in Figure 7.1. The results are shown in Figure 7.2. data random; drop n; Group = 'H'; do n = 1 to 20; X = 4.5 + 2 * normal(57391); Y = X + .5 + normal ...
The large p-value (.7744) provides insufficient evidence of a difference in test score medians. Because PROC UNIVARIATE computes a symmetric confidence interval, some coverages for the confidence ...