From Fig. 3, it can be seen that moving from over-dispersion (m < 1) to under-dispersion (m > 1) produces large ANOS of s-CUSUM chart and provides minimal ANOS at m = 1. I
FromFig. 3, it can be seen that moving from over-dispersion (m < 1) tounder-dispersion (m > 1) produces large ANOS of s-CUSUM chartand provides minimal ANOS at m = 1. I