Research Article

Triple Homogeneously Weighted Moving Average Charts for Monitoring Process Dispersion

Table 7

Performance measures for two-sided chart versus two-sided competing charts when  = 15 for .


1.25532.1221.5131.712.2771.1861.4662.5151.7961.9932.478
0.51.011.011.181.011.031.161.011.021.401.041.081.25
(0.11)(0.13)(0.54)(0.12)(0.17)(0.37)(0.11)(0.21)(0.72)(0.20)(0.27)(0.45)
0.551.041.051.451.061.111.351.041.101.781.141.211.48
(0.28)(0.32)(0.81)(0.26)(0.32)(0.52)(0.29)(0.43)(0.92)(0.38)(0.44)(0.58)
0.61.131.171.821.181.261.611.141.272.221.331.431.78
(0.50)(0.56)(1.02)(0.47)(0.52)(0.69)(0.52)(0.69)(1.05)(0.64)(0.65)(0.75)
0.651.311.382.301.431.511.991.331.552.751.681.772.23
(0.76)(0.82)(1.21)(0.81)(0.78)(0.92)(0.77)(0.95)(1.20)(0.99)(0.92)(1.01)
0.71.611.712.901.851.952.541.641.963.452.252.322.87
(1.05)(1.11)(1.46)(1.31)(1.19)(1.29)(1.06)(1.24)(1.50)(1.52)(1.36)(1.41)
0.752.042.173.772.642.673.462.072.514.543.243.233.94
(1.39)(1.46)(1.97)(2.12)(1.86)(1.94)(1.41)(1.61)(2.12)(2.36)(2.05)(2.13)
0.82.682.885.254.144.055.052.733.406.454.984.845.78
(1.95)(2.05)(3.02)(3.60)(3.09)(3.11)(1.98)(2.31)(3.39)(3.77)(3.30)(3.44)
0.853.774.108.207.056.828.223.844.9610.308.318.049.51
(3.08)(3.31)(5.41)(6.43)(5.59)(5.63)(3.13)(3.84)(6.08)(6.42)(5.79)(6.31)
0.95.876.6315.7614.1313.5616.106.058.5919.7316.1615.7919.22
(6.05)(6.75)(11.81)(13.13)(11.80)(12.29)(6.23)(8.29)(12.82)(12.80)(12.43)(14.98)
0.9511.9914.8644.9138.8639.3947.8912.6822.5053.6245.3747.6259.78
(18.92)(22.49)(37.87)(39.36)(39.26)(44.43)(19.88)(29.84)(39.19)(42.54)(45.65)(55.78)
1199.02200.43199.75200.36200.42199.93200.48200.68200.42200.03200.40200.82
(2345.54)(950.48)(173.11)(259.54)(246.45)(216.08)(1697.43)(418.10)(157.24)(226.73)(218.14)(205.66)
1.15.566.4416.0814.7014.0915.935.768.4219.7216.7116.1718.24
(6.33)(7.35)(13.57)(15.14)(13.78)(13.63)(6.59)(9.27)(14.22)(14.71)(14.21)(15.29)
1.22.933.135.825.074.865.562.993.747.145.925.636.23
(2.46)(2.62)(4.27)(5.20)(4.49)(4.25)(2.50)(3.08)(4.79)(5.26)(4.66)(4.58)
1.32.042.173.472.722.673.102.082.454.103.193.093.47
(1.52)(1.62)(2.30)(2.59)(2.24)(2.16)(1.55)(1.79)(2.52)(2.83)(2.42)(2.33)
1.41.611.682.471.841.832.161.631.862.862.102.082.37
(1.11)(1.17)(1.60)(1.52)(1.33)(1.36)(1.13)(1.30)(1.72)(1.71)(1.49)(1.47)
1.51.371.411.931.451.471.701.381.532.211.601.611.83
(0.85)(0.90)(1.25)(0.98)(0.89)(0.96)(0.87)(1.01)(1.33)(1.13)(1.01)(1.03)
1.61.221.251.611.251.271.431.231.321.791.341.371.52
(0.66)(0.70)(1.01)(0.67)(0.63)(0.71)(0.67)(0.78)(1.08)(0.78)(0.72)(0.77)
1.71.141.151.381.141.161.271.141.201.531.201.221.34
(0.52)(0.55)(0.81)(0.47)(0.45)(0.54)(0.52)(0.62)(0.90)(0.56)(0.53)(0.61)
1.81.081.091.251.081.101.181.091.121.351.121.141.22
(0.41)(0.43)(0.67)(0.34)(0.34)(0.43)(0.41)(0.48)(0.74)(0.41)(0.4)(0.47)
1.91.051.051.171.051.061.121.051.081.241.071.091.14
(0.31)(0.33)(0.54)(0.25)(0.26)(0.34)(0.32)(0.39)(0.62)(0.30)(0.31)(0.38)
21.031.031.111.031.041.081.031.051.151.041.061.10
(0.25)(0.26)(0.43)(0.19)(0.20)(0.28)(0.25)(0.30)(0.49)(0.23)(0.24)(0.31)
13.1613.4816.3615.4515.3916.2113.2914.1517.5716.1516.1617.15
1.001.021.241.171.171.231.001.061.321.211.221.29
1.001.051.691.381.381.601.001.171.951.531.531.75


1.9942.7362.2022.2942.6451.7952.4632.7852.2972.472.719
0.51.071.371.471.171.251.391.071.371.471.171.251.39
(0.36)(0.70)(0.59)(0.39)(0.45)(0.52)(0.36)(0.70)(0.59)(0.39)(0.45)(0.52)
0.551.231.731.801.381.481.671.231.731.801.381.481.67
(0.63)(0.92)(0.75)(0.58)(0.59)(0.66)(0.63)(0.92)(0.75)(0.58)(0.59)(0.66)
0.61.512.182.221.711.802.051.512.182.221.711.802.05
(0.89)(1.06)(0.89)(0.82)(0.78)(0.86)(0.89)(1.06)(0.89)(0.82)(0.78)(0.86)
0.651.892.702.762.182.272.601.892.702.762.182.272.60
(1.12)(1.21)(1.12)(1.13)(1.05)(1.19)(1.12)(1.21)(1.12)(1.13)(1.05)(1.19)
0.72.413.393.562.902.953.462.413.393.562.902.953.46
(1.39)(1.49)(1.58)(1.57)(1.48)(1.77)(1.39)(1.49)(1.58)(1.57)(1.48)(1.77)
0.753.124.454.914.034.104.953.124.454.914.034.104.95
(1.81)(2.10)(2.48)(2.29)(2.24)(2.91)(1.81)(2.10)(2.48)(2.29)(2.24)(2.91)
0.84.276.307.385.966.137.864.276.307.385.966.137.86
(2.67)(3.35)(4.27)(3.58)(3.77)(5.45)(2.67)(3.35)(4.27)(3.58)(3.77)(5.45)
0.856.5010.0412.539.9310.6014.486.5010.0412.539.9310.6014.48
(4.68)(6.01)(8.32)(6.79)(7.68)(11.69)(4.68)(6.01)(8.32)(6.79)(7.68)(11.69)
0.912.1019.2626.3020.8223.4334.1912.1019.2626.3020.8223.4334.19
(10.42)(12.71)(20.28)(17.20)(20.44)(31.54)(10.42)(12.71)(20.28)(17.20)(20.44)(31.54)
0.9534.8752.5377.9067.3576.22101.2734.8752.5377.9067.3576.22101.27
(35.92)(38.63)(68.91)(65.03)(73.91)(99.67)(35.92)(38.63)(68.91)(65.03)(73.91)(99.67)
1200.43200.55200.39200.60200.93200.50200.43200.55200.39200.60200.93200.50
(234.77)(156.29)(191.41)(205.54)(203.46)(201.16)(234.77)(156.29)(191.41)(205.54)(203.46)(201.16)
1.112.3819.3422.7920.3121.4726.1612.3819.3422.7920.3121.4726.16
(12.19)(14.14)(18.24)(17.85)(19.3)(24.19)(12.19)(14.14)(18.24)(17.85)(19.30)(24.19)
1.24.717.007.666.726.727.594.717.007.666.726.727.59
(3.69)(4.76)(5.21)(4.97)(5.04)(5.9)(3.69)(4.76)(5.21)(4.97)(5.04)(5.9)
1.32.944.024.203.713.663.942.944.024.203.713.663.94
(2.06)(2.49)(2.59)(2.66)(2.51)(2.69)(2.06)(2.49)(2.59)(2.66)(2.51)(2.69)
1.42.172.822.852.472.482.642.172.822.852.472.482.64
(1.47)(1.70)(1.67)(1.71)(1.60)(1.64)(1.47)(1.70)(1.67)(1.71)(1.60)(1.64)
1.51.722.182.171.871.881.991.722.182.171.871.881.99
(1.13)(1.33)(1.22)(1.21)(1.12)(1.13)(1.13)(1.33)(1.22)(1.21)(1.12)(1.13)
1.61.451.771.771.521.551.641.451.771.771.521.551.64
(0.91)(1.08)(0.97)(0.88)(0.83)(0.84)(0.91)(1.08)(0.97)(0.88)(0.83)(0.84)
1.71.291.511.501.321.351.421.291.511.501.321.351.42
(0.72)(0.90)(0.77)(0.66)(0.63)(0.66)(0.72)(0.90)(0.77)(0.66)(0.63)(0.66)
1.81.181.341.331.201.231.281.181.341.331.201.231.28
(0.58)(0.73)(0.62)(0.51)(0.50)(0.53)(0.58)(0.73)(0.62)(0.51)(0.50)(0.53)
1.91.111.221.221.121.151.191.111.221.221.121.151.19
(0.46)(0.59)(0.50)(0.38)(0.40)(0.43)(0.46)(0.59)(0.50)(0.38)(0.40)(0.43)
21.071.151.151.081.101.131.071.151.151.081.101.13
(0.36)(0.49)(0.41)(0.31)(0.31)(0.36)(0.36)(0.49)(0.41)(0.31)(0.31)(0.36)
13.9915.9918.1816.9617.2118.5815.2917.4418.8417.6718.1719.94
1.001.141.301.211.231.331.001.141.231.161.191.30
1.001.341.751.441.461.681.001.321.431.231.271.46