Research Article
On Efficient Monitoring of Weibull Lifetimes Using Censored Median Hybrid DEWMA Chart
Table 13
Estimation effect on ARL
0 at different values of
m and
n for CM-DEWMA and CM-HDEWMA control charts assuming
λ = 0.15, and
.
| | | CM-DEWMA | CM-HDEWMA | | Pc = 30%, λ = 0.15 | | m | 100 | 500 | 700 | 1000 | 100 | 500 | 700 | 1000 | | n | ARL0 (SDRL) |
| | 3 | 171.71(39.99) | 173.25(38.18) | 177.35(37.27) | 177.46(35.95) | 178.08(37.79) | 180.45(37.66) | 185.11(35.22) | 188.7(33.89) | | 5 | 173.99(35.54) | 175.55(31.87) | 178.35(30.9) | 181.61(32.09) | 183.59(33.56) | 185.26(32.33) | 191.93(31.94) | 195.25(32.09) | | 7 | 180.54(28.78) | 181.05(25.38) | 182.54(25.24) | 185.95(24.36) | 187.8(28.53) | 190.25(27.03) | 194.51(24.62) | 198.27(24.74) | | 10 | 189.01(23.81) | 189.78(22.42) | 191.08(20.69) | 194.87(20.75) | 188.84(22.56) | 193.26(20.09) | 195.58(20.27) | 200.47(21.42) |
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