Research Article
Truncated Life Test Plans for Economic Reliability Based on Four-Parametric Burr Distribution
Table 1
Minimum sample size for the specified ratio
, confidence level
, acceptance number
,
, and
using binomial approximation.
| | | | 0.306 | 0.413 | 0.521 | 0.627 | 0.841 | 1.055 | 1.483 | 1.911 |
| 0.75 | 0 | 7 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | 0.75 | 1 | 15 | 9 | 6 | 4 | 3 | 2 | — | — | 0.75 | 2 | 22 | 13 | 9 | 7 | 4 | 3 | — | — | 0.75 | 3 | 30 | 17 | 12 | 9 | 6 | 5 | — | — | 0.75 | 4 | 37 | 22 | 15 | 11 | 8 | 6 | — | — | 0.75 | 5 | 44 | 26 | 18 | 13 | 9 | 8 | — | — | 0.75 | 6 | 50 | 30 | 21 | 16 | 11 | 9 | — | — | 0.75 | 7 | 57 | 34 | 23 | 18 | 13 | 10 | — | — | 0.75 | 8 | 64 | 38 | 26 | 20 | 14 | 12 | — | — | 0.75 | 9 | 71 | 42 | 29 | 22 | 16 | 13 | — | — | 0.75 | 10 | 77 | 46 | 32 | 25 | 18 | 14 | — | — |
| 0.9 | 0 | 12 | 7 | 4 | 3 | 2 | 1 | 1 | 1 | 0.9 | 1 | 22 | 12 | 8 | 6 | 4 | 3 | 2 | 2 | 0.9 | 2 | 30 | 17 | 12 | 9 | 6 | 4 | 3 | 3 | 0.9 | 3 | 38 | 22 | 15 | 11 | 7 | 6 | 4 | 4 | 0.9 | 4 | 46 | 27 | 18 | 14 | 9 | 7 | 6 | 5 | 0.9 | 5 | 54 | 32 | 22 | 16 | 11 | 9 | 7 | 6 | 0.9 | 6 | 61 | 36 | 25 | 19 | 13 | 10 | 8 | 7 | 0.9 | 7 | 69 | 41 | 28 | 21 | 15 | 12 | 9 | 8 | 0.9 | 8 | 76 | 45 | 31 | 24 | 16 | 13 | 10 | 9 | 0.9 | 9 | 84 | 49 | 34 | 26 | 18 | 14 | 12 | 10 | 0.9 | 10 | 91 | 54 | 37 | 28 | 20 | 16 | 13 | 12 |
| 0.95 | 0 | 16 | 9 | 6 | 4 | 2 | 2 | 1 | 1 | 0.95 | 1 | 27 | 15 | 10 | 7 | 5 | 3 | 2 | 2 | 0.95 | 2 | 36 | 21 | 14 | 10 | 7 | 5 | 4 | 3 | 0.95 | 3 | 44 | 26 | 17 | 13 | 8 | 6 | 5 | 4 | 0.95 | 4 | 53 | 31 | 21 | 16 | 10 | 8 | 6 | 5 | 0.95 | 5 | 61 | 36 | 24 | 18 | 12 | 10 | 7 | 6 | 0.95 | 6 | 69 | 40 | 27 | 21 | 14 | 11 | 9 | 8 | 0.95 | 7 | 77 | 45 | 31 | 23 | 16 | 13 | 10 | 9 | 0.95 | 8 | 84 | 50 | 34 | 26 | 18 | 14 | 11 | 10 | 0.95 | 9 | 92 | 54 | 37 | 28 | 19 | 15 | 12 | 11 | 0.95 | 10 | 99 | 59 | 40 | 31 | 21 | 17 | 13 | 12 |
| 0.99 | 0 | 24 | 14 | 9 | 6 | 4 | 3 | 1 | 1 | 0.99 | 1 | 37 | 21 | 14 | 10 | 6 | 5 | 3 | 2 | 0.99 | 2 | 47 | 27 | 18 | 13 | 8 | 6 | 4 | 4 | 0.99 | 3 | 57 | 33 | 22 | 16 | 11 | 8 | 6 | 5 | 0.99 | 4 | 66 | 38 | 26 | 19 | 13 | 10 | 7 | 6 | 0.99 | 5 | 75 | 44 | 29 | 22 | 15 | 12 | 8 | 7 | 0.99 | 6 | 84 | 49 | 33 | 25 | 17 | 13 | 10 | 8 | 0.99 | 7 | 92 | 54 | 37 | 27 | 18 | 14 | 11 | 9 | 0.99 | 8 | 100 | 59 | 40 | 30 | 20 | 16 | 12 | 11 | 0.99 | 9 | 109 | 64 | 43 | 33 | 22 | 17 | 13 | 12 | 0.99 | 10 | 117 | 69 | 47 | 35 | 24 | 19 | 15 | 13 |
|
|