Table 9.

The ${\mathit{ARL}}_{3HEPD}\text{and}{\mathit{ASS}}_{3HEPD}$ values of proposed CC using HEPD when both parameters are shifted using $r_{\mathit{oHEPD}}=300\text{and}n=20$.

		$\lambda =2$		$\lambda =4$
Control limits$\to$		${\mathit{UCL}}_1=$ 11.9733 ${\mathit{LCL}}_1=$ 6.4012	${\mathit{UCL}}_2=$ 11.9713 ${\mathit{LCL}}_2=$ 6.4032	${\mathit{UCL}}_1=11.921$ ${\mathit{LCL}}_1=$ 6.453	${\mathit{UCL}}_2=11.709$ ${\mathit{LCL}}_2=6.6651$
Control coefficient $\to$		$W_1=$ 1.2500	$W_2=$ 1.2492	$W_1=1.2268$	$W_2=1.1318$
Truncated constant $\to$		$q_1=0.7668437$		$q_1=0.85702$

$e$	$r$	${\mathit{ARL}}_{3HEPD}$	${\mathit{ASS}}_{3HEPD}$	${\mathit{ARL}}_{3HEPD}$	${\mathit{ASS}}_{3HEPD}$
1	1	303.82	24.81	302.44	24.81
1.1	0.97	36.72	24.84	29.93	24.85
1.2	0.95	19.86	24.87	15.69	24.89
1.3	0.93	12.55	24.90	9.81	24.91
1.4	0.90	7.52	24.92	5.92	24.91
1.5	0.85	4.02	24.82	3.23	24.69
2	0.80	2.20	24.22	1.84	23.81
3	0.70	1.16	21.59	1.09	21.06
4	0.60	1.00	20.07	1.00	20.02
5	0.50	1.00	20.00	1.00	20.00