Table 13 Summary fit for the Weibull lifespan model from LED datasets.
Stress | Par. | MLE(SE) | 95% ACI | \(\textsf {KS}\)(P-Value) | ||
|---|---|---|---|---|---|---|
Low. | Upp. | IL | ||||
Normal Use | \(\vartheta\) | 1.2543 (0.1119) | 1.0351 | 1.4737 | 0.4386 | 0.1369 (0.2269) |
\(\phi\) | 0.6325 (0.0999) | 0.4367 | 0.8283 | 0.3916 | Â | |
Accelerated | \(\vartheta\) | 1.3516 (0.1248) | 1.1070 | 1.5963 | 0.4893 | 0.0928 (0.7002) |
\(\phi\) | 0.9769 (0.1367) | 0.7090 | 1.2448 | 0.5358 | Â | |