Figure 4.

Spurious power probability (${\pi }_{D\overline{C}}$) as a function of δ from −2.5 to +2.5 for all tests N2, N8, N14, and N15. ${\pi }_{D\overline{C}}$ values for uncontaminated samples (δ = 0) are shown by open circles. (a) n = 5; (b) n = 10; (c) n = 15; and (d) n = 20.