Table 4.

Average lower limit, upper limit and length of 95% confidence intervals

Test	Lower limit	Upper limit	Length
W pb	0.228	0.568	0.340
T pb	0.212	0.378	0.166
W dc	0.209	0.374	0.167

$D_{\mathrm{pop}}=0.292$, $E\left[n_j\right]=20$, $J=50$, $p=0.10$.