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Table 5 Least square estimators of the modified Weibull distribution parameters under different variance values

From: Reliability Assessment for the Solenoid Valve of a High-Speed Train Braking System under Small Sample Size

Estimators of parameters

Variance value

0.1

0.1125

0.125

α

1.3007 × 10−5

1.7383 × 10−5

1.9020 × 10−5

β

1.054

1.018

1.031

λ

1.946 × 10−6

1.101 × 10−5

1.277 × 10−5