Research Article
A New Finite Interval Lifetime Distribution Model for Fitting Bathtub-Shaped Failure Rate Curve
| | Type | | | Interval | Failure rate | Significance |
| | 1 | | | | | Whole bathtub | | 2 | 1 | | | Increase from to | No early failures | | 3 | | | | Increase from 0 to | Wear-out failures only | | 4 | | 0 | | Decrease from to 0 | Early failures only | | 5 | 1 | 0 | | Identically | Random failures only | | 6 | | 0 | | Increase from 0 to | Wear-out failures only |
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