Table 2.

Properties of the flexible design with α = 0.025,k = 3,n ₁=40, N ₁=100,n ₂=200 and σ = σ ₀=1 for a range of ρ values (error rates are based on 100 000 simulations).

ρ	$c/\sqrt{V_2}$	Type I error selecting $\arg \max \left\{{\tilde{\theta }}_i\right\}$	Type I error selecting $\arg \max \left\{{\tilde{\theta }}_i\right\}$		Type I error selecting $\arg \max \left\{{\widehat{\theta }}_i\right\}$	Power selecting $\arg \max \left\{{\widehat{\theta }}_i\right\}$
		Variances known	Variances unknown		Variances known	Variances unknown
0.0	2.19	0.0242	0.0246		0.0243	0.7827
0.5	2.22	0.0241	0.0244		0.0234	0.7974
0.6	2.23	0.0245	0.0248		0.0233	0.8071
0.7	2.24	0.0249	0.0252		0.0239	0.8119
0.8	2.25	0.0253	0.0255		0.0240	0.8251
0.9	2.27	0.0245	0.0248		0.0236	0.8358