Reliability & Life Testing Handbook, Volume 1

| Sample Size | 1 - ? | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| N | 0.85 | 0.90 | 0.95 | 0.990 | 0.995 | 0.999 | 0.9995 | 0.99995 | 0.999995 |
| 5 | 1.1145 | 1.3818 | 1.7793 | 2.5257 | 2.7989 | 3.3622 | 3.5814 | 4.2381 | 4.8139 |
| 10 | 1.0697 | 1.3240 | 1.7016 | 2.4103 | 2.6698 | 3.2047 | 3.4130 | 4.0367 | 4.5841 |
| 15 | 1.0575 | 1.3085 | 1.6809 | 2.3795 | 2.6352 | 3.1626 | 3.3681 | 3.9831 | 4.5231 |
| 20 | 1.0519 | 1.3012 | 1.6712 | 2.3652 | 2.6193 | 3.1432 | 3.3473 | 3.9582 | 4.4948 |
| 25 | 1.0486 | 1.2971 | 1.6656 | 2.3570 | 2.6100 | 3.1320 | 3.3351 | 3.9439 | 4.4784 |
| 30 | 1.0465 | 1.2944 | 1.6620 | 2.3516 | 2.6040 | 3.1246 | 3.3274 | 3.9347 | 4.4678 |
| 1000 | 1.0364 | 1.2815 | 1.6449 | 2.3264 | 2.5758 | 3.0903 | 3.2906 | 3.8927 | 4.4175 |
| N | 0.9 65 | 0.9 75 | 0.9 85 | 0.9 95 | 0.9 105 | 0.9 115 | 0.9 125 | 0.9 135 | 0.9 145 |
| 5 | 5.3329 | 5.8075 | 6.2498 | 6.6632 | 7.0547 | 7.4259 | 7.7783 | 8.1193 | 8.4461 |
| 10 | 5.0776 | 5.5289 | 5.9490 | 6.3430 | 6.7148 | 7.0674 | 7.4046 | 7.7270 | 8.0375 |
| 15 | 5.0094 | 5.4551 | 5.8692 | 6.2577 | 6.6237 | 6.9718 | 7.3028 | 7.6224 | 7.9286 |
| 20 | 4.9781 | 5.4205 | 5.8322 | 6.2169 | 6.5817 | 6.9278 | 7.2568 | 7.5742 | 7.8770 |
| 25 | 4.9597 | 5.4002 | 5.8103 | 6.1942 | 6.5571 | 6.9009 | 7.2308 | 7.5459 | 7.8473 |
| 30 | 4.9476 | 5.3876 | 5.7960 | 6.1794 | 6.5417 | 6.8859 | 7.2132 | 7.5176 | 7.8176 |
| 1000 | 4.8919 | 5.3265 | 5.7306 | 6.1093 | 6.4669 | 6.8065 | 7.1305 | 7.4409 | 7.7392 |