Research Article
Acceptance Sampling Plans from Life Tests Based on Percentiles of Half Normal Distribution
Table 1
Minimum sample sizes necessary to assert the median life of a product.
| | | | 0.1 | 0.2 | 0.4 | 0.6 | 0.8 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 |
| 0.75 | 0 | 26 | 13 | 6 | 4 | 3 | 3 | 2 | 2 | 2 | 1 | 0.75 | 1 | 50 | 25 | 12 | 8 | 6 | 5 | 3 | 3 | 2 | 2 | 0.75 | 2 | 72 | 36 | 18 | 12 | 9 | 7 | 5 | 4 | 4 | 3 | 0.75 | 3 | 94 | 47 | 23 | 16 | 12 | 10 | 7 | 5 | 5 | 4 | 0.75 | 4 | 116 | 58 | 29 | 19 | 15 | 12 | 8 | 7 | 6 | 5 | 0.75 | 5 | 137 | 68 | 34 | 23 | 17 | 14 | 10 | 8 | 7 | 6 | 0.75 | 6 | 158 | 79 | 39 | 26 | 20 | 16 | 11 | 9 | 8 | 8 | 0.75 | 7 | 179 | 89 | 45 | 30 | 23 | 18 | 13 | 11 | 9 | 9 | 0.75 | 8 | 200 | 100 | 50 | 33 | 25 | 21 | 14 | 12 | 10 | 10 | 0.75 | 9 | 220 | 110 | 55 | 37 | 28 | 23 | 16 | 13 | 12 | 11 | 0.75 | 10 | 241 | 120 | 60 | 40 | 31 | 25 | 18 | 14 | 13 | 12 |
| 0.90 | 0 | 42 | 21 | 10 | 7 | 5 | 4 | 2 | 2 | 2 | 2 | 0.90 | 1 | 71 | 35 | 17 | 11 | 8 | 7 | 4 | 3 | 3 | 2 | 0.90 | 2 | 98 | 48 | 24 | 16 | 12 | 9 | 6 | 5 | 4 | 4 | 0.90 | 3 | 123 | 61 | 30 | 20 | 15 | 12 | 8 | 6 | 5 | 5 | 0.90 | 4 | 147 | 73 | 36 | 24 | 18 | 14 | 10 | 8 | 6 | 6 | 0.90 | 5 | 171 | 85 | 42 | 28 | 21 | 17 | 11 | 9 | 8 | 7 | 0.90 | 6 | 194 | 96 | 48 | 32 | 24 | 19 | 13 | 10 | 9 | 8 | 0.90 | 7 | 217 | 108 | 53 | 35 | 27 | 21 | 15 | 12 | 10 | 9 | 0.90 | 8 | 240 | 119 | 59 | 39 | 29 | 24 | 16 | 13 | 11 | 10 | 0.90 | 9 | 262 | 130 | 65 | 43 | 32 | 26 | 18 | 14 | 12 | 11 | 0.90 | 10 | 284 | 141 | 70 | 47 | 35 | 28 | 20 | 16 | 14 | 12 |
| 0.95 | 0 | 55 | 27 | 13 | 8 | 6 | 5 | 3 | 2 | 2 | 2 | 0.95 | 1 | 87 | 43 | 21 | 14 | 10 | 8 | 5 | 4 | 3 | 3 | 0.95 | 2 | 115 | 57 | 28 | 18 | 13 | 11 | 7 | 5 | 4 | 4 | 0.95 | 3 | 142 | 70 | 34 | 23 | 17 | 13 | 9 | 7 | 6 | 5 | 0.95 | 4 | 168 | 83 | 41 | 27 | 20 | 16 | 11 | 8 | 7 | 6 | 0.95 | 5 | 193 | 96 | 47 | 31 | 23 | 18 | 12 | 10 | 8 | 7 | 0.95 | 6 | 218 | 108 | 53 | 35 | 26 | 21 | 14 | 11 | 9 | 8 | 0.95 | 7 | 242 | 120 | 59 | 39 | 29 | 23 | 16 | 12 | 11 | 10 | 0.95 | 8 | 266 | 132 | 65 | 43 | 32 | 26 | 18 | 14 | 12 | 11 | 0.95 | 9 | 289 | 143 | 71 | 47 | 35 | 28 | 19 | 15 | 13 | 12 | 0.95 | 10 | 312 | 155 | 77 | 51 | 38 | 30 | 21 | 16 | 14 | 13 |
| 0.99 | 0 | 84 | 41 | 20 | 13 | 9 | 7 | 4 | 3 | 2 | 2 | 0.99 | 1 | 121 | 59 | 29 | 19 | 14 | 11 | 7 | 5 | 4 | 3 | 0.99 | 2 | 154 | 76 | 37 | 24 | 17 | 14 | 9 | 7 | 5 | 5 | 0.99 | 3 | 184 | 91 | 44 | 29 | 21 | 17 | 11 | 8 | 7 | 6 | 0.99 | 4 | 212 | 105 | 51 | 33 | 25 | 19 | 13 | 10 | 8 | 7 | 0.99 | 5 | 240 | 119 | 58 | 38 | 28 | 22 | 15 | 11 | 9 | 8 | 0.99 | 6 | 267 | 132 | 65 | 42 | 31 | 25 | 16 | 13 | 10 | 9 | 0.99 | 7 | 293 | 145 | 71 | 47 | 35 | 27 | 18 | 14 | 12 | 10 | 0.99 | 8 | 319 | 158 | 77 | 51 | 38 | 30 | 20 | 15 | 13 | 12 | 0.99 | 9 | 345 | 171 | 84 | 55 | 41 | 33 | 22 | 17 | 14 | 13 | 0.99 | 10 | 370 | 183 | 90 | 59 | 44 | 35 | 24 | 18 | 15 | 14 |
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