Research Article

Improved Nonparametric Control Chart Based on Ranked Set Sampling with Application of Chemical Data Modelling

Table 4

RL characteristics of the RSS-based NP double EWMA SR (NPRDEWMA-SR) control chart under different distributions with nominal and .

(, L)Distr.Metrics
00.0250.030.050.0750.10.150.20.250.50.7511.52

(0.05, 2.975)NormalARL501.58117.1387.7838.3420.0112.546.293.822.651.131.001.001.001.00
SDRL562.31119.8185.9032.9016.029.694.802.881.800.400.070.000.000.00

t(4)ARL499.96141.02111.2149.0025.8115.878.234.863.401.281.031.001.001.00
SDRL557.27138.50109.7644.5820.9313.206.393.702.490.580.200.060.000.00
t(8)ARL500.13129.0197.7044.0022.6414.157.044.322.951.191.011.001.001.00
SDRL555.79131.1896.1239.7318.2812.036.253.232.130.490.110.010.000.00
CNARL500.89121.2594.8940.5821.3713.116.804.042.811.161.001.001.001.00
SDRL553.38122.5192.4438.1017.3011.365.202.981.960.430.080.010.010.00
LaplaceARL498.9479.0057.7025.4013.638.204.182.601.921.061.001.001.001.00
SDRL565.2973.1852.3520.6511.007.023.071.791.190.250.060.000.010.00
LogisticARL499.71103.1278.0234.3618.0111.075.483.322.361.101.001.001.001.00
SDRL552.61100.7072.6029.7715.779.114.172.461.620.350.030.000.000.00