Table 4.

Estimated Sample Size per Arm Using the Formula Suggested by Fleiss

α	1 – β	C	Pc	Pt	d	n
							0.05	0.8	7.85	0.5	0.25	0.25	65
0.05	0.9	10.51	84
0.01	0.8	11.68	92
0.01	0.9	14.88	115