Table 7. AEC and SDEC of the AEWMA... | Emerald Publishing

Table 7.

AEC and SDEC of the AEWMA Control chart when different Phase I samples are used to estimate the process parameters

m	$\overset{´}{δ}$
m	0.5	1	2	3	4	5
20	29.542 (8.478)	22.395 (2.041)	18.889 (0.7749)	17.055 (0.5802)	15.6300 (0.4263)	14.8546 (0.2455)
100	26.725 (2.275)	21.653 (0.6335)	18.532 (0.2691)	16.804 (0.2176)	15.4408 (0.1553)	14.7121 (0.0778)
300	26.311 (1.099)	21.511 (0.3325)	18.454 (0.1362)	16.749 (0.1139)	15.3990 (0.0816)	14.6799 (0.0349)
500	26.235 (0.8313)	21.475 (0.2481)	18.437 (0.1004)	16.736 (0.0844)	15.3898 (0.0604)	14.6736 (0.0249)
700	26.188 (0.6807)	21.464 (0.2060)	18.430 (0.0829)	16.730 (0.0697)	15.3857 (0.0508)	14.6703 (0.0196)
900	26.173 (0.5967)	21.459 (0.1836)	18.427 (0.0733)	16.727 (0.0618)	15.3833 (0.0438)	14.6688 (0.0173)
1100	26.163 (0.5436)	21.451 (0.1626)	18.423 (0.0661)	16.726 (0.0550)	15.3811 (0.0393)	14.6677 (0.0152)
∞	26.105	21.430	18.411	16.717	15.375	14.662

m	$\overset{´}{δ}$
m	0.5	1	2	3	4	5
20	29.542 (8.478)	22.395 (2.041)	18.889 (0.7749)	17.055 (0.5802)	15.6300 (0.4263)	14.8546 (0.2455)
100	26.725 (2.275)	21.653 (0.6335)	18.532 (0.2691)	16.804 (0.2176)	15.4408 (0.1553)	14.7121 (0.0778)
300	26.311 (1.099)	21.511 (0.3325)	18.454 (0.1362)	16.749 (0.1139)	15.3990 (0.0816)	14.6799 (0.0349)
500	26.235 (0.8313)	21.475 (0.2481)	18.437 (0.1004)	16.736 (0.0844)	15.3898 (0.0604)	14.6736 (0.0249)
700	26.188 (0.6807)	21.464 (0.2060)	18.430 (0.0829)	16.730 (0.0697)	15.3857 (0.0508)	14.6703 (0.0196)
900	26.173 (0.5967)	21.459 (0.1836)	18.427 (0.0733)	16.727 (0.0618)	15.3833 (0.0438)	14.6688 (0.0173)
1100	26.163 (0.5436)	21.451 (0.1626)	18.423 (0.0661)	16.726 (0.0550)	15.3811 (0.0393)	14.6677 (0.0152)
∞	26.105	21.430	18.411	16.717	15.375	14.662

Note:

For every value of shift size, the first value is the AEC, and the value between brackets is the SDEC