Research Article

New One-Sided EWMA t Charts without and with Variable Sampling Intervals for Monitoring the Process Mean

Table 7

The out-of-control ATS1 profiles of the VSI and FSI upper-sided NEWMA t charts when ATS0 = 200 and n∈{9, 11}.

nλChartUWL+UCL+δ
0.10.30.50.71.01.523

90.1FSI0.561435.538.614.743.332.381.731.361.02
VSI0.03950.561417.822.000.750.410.240.170.140.10
0.2FSI0.922744.749.124.503.012.111.731.161.02
VSI0.07210.922725.372.180.720.370.220.150.120.10
0.3FSI1.236754.1210.424.602.931.981.361.081.00
VSI0.09661.236733.602.570.730.360.200.140.110.10
0.4FSI1.531563.1812.254.942.971.911.281.051.00
VSI0.11971.531542.023.280.780.360.200.130.110.10
0.5FSI1.821470.7714.615.503.081.891.241.041.00
VSI0.14231.821449.774.310.890.370.190.120.100.10
0.75FSI2.557787.5222.067.903.831.981.191.021.00
VSI0.19982.557767.828.501.500.480.200.120.100.10
0.9FSI3.028096.4127.389.964.642.161.201.021.00
VSI0.23663.028077.8212.232.260.630.220.120.100.10
1.0FSI3.3526100.7930.4011.565.312.331.201.021.00
VSI0.26193.352682.4414.982.990.780.240.120.100.10
110.1FSI0.543030.777.524.192.972.151.581.201.00
VSI0.03820.543014.451.620.610.340.220.160.120.10
0.2FSI0.888037.867.623.872.651.891.321.051.00
VSI0.07630.888020.721.730.580.310.190.130.110.10
0.3FSI1.183845.538.333.852.521.741.201.021.00
VSI0.10171.183827.371.950.570.290.180.120.100.10
0.4FSI1.463454.059.564.012.491.661.141.011.00
VSI0.12581.463434.492.350.600.290.170.110.100.10
0.5FSI1.734361.1511.144.312.521.611.111.011.00
VSI0.14901.734341.502.990.650.290.160.110.100.10
0.75FSI2.421977.9216.785.752.881.601.071.001.00
VSI0.18922.421957.885.750.950.330.160.110.100.10
0.9FSI2.857586.0621.027.143.331.661.071.001.00
VSI0.22322.857567.288.381.370.400.170.110.100.10
1.0FSI3.166791.0024.058.343.761.731.071.001.00
VSI0.24743.166772.2510.531.820.480.180.110.100.10