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Table 2 Simulation results for group 2

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

Parameters

Bayesian estimation

Maximum likelihood estimation

n = 33

 α

−6.08 × 10−4

5.00 × 10−6

 β

7.00 × 10−2

5.85

 λ

5.53 × 10−6

−1.00 × 10−1

 E(t)

8.97 × 102

6.00 × 102

n = 24

 α

−4.27 × 10−4

5.00 × 10−6

 β

6.00 × 10−2

5.47

 λ

5.43 × 10−6

−7.00 × 10−2

 E(t)

7.27 × 102

5.82 × 102

n = 12

 α

−1.55 × 10−4

5.00 × 10−6

 β

3.00 × 10−2

4.88

 λ

5.69 × 10−6

−4.00 × 10−2

 E(t)

2.92 × 102

−5.12 × 102

n = 6

 α

−4.75 × 10−4

5.09 × 10−6

 β

5.00 × 10−2

4.42

 λ

6.46 × 10−6

2.00 × 10−2

 E(t)

−3.75 × 102

−1.62 × 103