Table 2.

Coverage frequencies from 500 replications using cubic spline (14) with p = 4 and N_m = [cn^1/(2p)log(n)].

n	1 − α	Coverage frequency σ = 0.5					Coverage frequency σ = 0.3
		c = 0.2	c = 0.3	c = 0.5	c = 1	c = 2	c = 0.2	c = 0.3	c = 0.5	c = 1	c = 2
60	0.950	0.644	0.916	0.902	0.890	0.738	0.672	0.922	0.940	0.940	0.916
	0.990	0.866	0.980	0.958	0.964	0.888	0.884	0.986	0.986	0.984	0.982
100	0.950	0.596	0.902	0.904	0.876	0.846	0.610	0.916	0.914	0.914	0.896
	0.990	0.786	0.970	0.968	0.956	0.952	0.798	0.980	0.974	0.970	0.964
200	0.950	0.928	0.942	0.932	0.936	0.904	0.938	0.952	0.950	0.948	0.934
	0.990	0.978	0.992	0.982	0.992	0.978	0.982	0.984	0.992	0.982	0.984
300	0.950	0.920	0.948	0.926	0.948	0.898	0.922	0.956	0.948	0.942	0.938
	0.990	0.976	0.986	0.986	0.988	0.980	0.982	0.984	0.988	0.984	0.982
500	0.950	0.928	0.922	0.954	0.902	0.898	0.928	0.928	0.936	0.932	0.916
	0.990	0.980	0.982	0.990	0.976	0.978	0.980	0.982	0.990	0.990	0.992