Table 5.

Number of successes for the three measurements in the drug study for delirium treatment (n = 30).

	Number of success (s)	p = s/n	$A={sin}^{-1}(\sqrt{\frac{s+\frac{3}{8}}{n+\frac{3}{4}}})$
cBeau	15	0.5000	0.7854
eaPoe	6	0.2000	0.4727
R&V	8	0.2667	0.5491
Placebo	10	0.3333	0.6198
Variance			0.0178

Also shown are proportions and Anscombe-transformed scores (A).