Table 4.

Simulation results for designs with a control arm comparing N=250 and N = 500 in LFC scenario, p₁ = p₂ = p₃ = p_C = 0.20, p₄ = 0.40. Values of n̄= mean per-arm sample size and 95% CI are for E₄.

		N=250	N=500
AR(1,0)	Pr(Select E4)	0.44	0.53
	n̄(95% CI )	152(11, 201)	369 (11, 444)
$\text{AR}(\frac{1}{2},0)$	Pr(Select E4)	0.46	0.67
	n̄(95% CI )	123(11, 177)	319 (11, 413)
$\text{AR}(\frac{n}{2N},0)$	Pr(Select E4)	0.48	0.77
	n̄(95% CI )	132(11, 179)	321 (11, 406)
AR(1, 0.1)	Pr(Select E4)	0.67	0.87
	n̄(95% CI )	127(11, 177)	313 (11, 403)
ER	Pr(Select E4)	0.66	0.85
	n̄(95% CI )	70(10, 109)	175 (13, 238)