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Mathematical Problems in Engineering
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Mathematical Problems in Engineering
/
2020
/
Article
/
Tab 1
/
Research Article
Data Analysis of Step-Stress Accelerated Life Test with Random Group Effects under Weibull Distribution
Table 1
Setting for simulation of failure data from SSALT.
Number of groups (
M
)
Number of test units within each group (
n
i
)
Standard deviation for
u
i
(
σ
u
)
4
20
0.2
5
30
0.7
6
1.5