Draws
a Monte Carlo simulated curve (a histogram),
converging to the theoretical density curve, a non-central t
distribution, as the number of trials (samples) tends to infinity.
In acceptance sampling, the “quality index” is
Q = t ⁄ √n, whence
k, the “acceptability constant”:
k = Qcrit. The t distribution applying
has parameters f = n − 1 and
δ = √n
Φinv(1−AQL).
Suggested risks, α, are given,
with the corresponding k (standard ANSI/ASQC Z1.9-1980).
* The default parameters are suitable
for the AQL’s presented.
|
| n | α |
AQL (%): 1 |
1.5 |
| 5 | 10 |
k: 1.53 | 1.40 |
| 7 | 10 |
1.62 | 1.50 |
| 10 | 10 |
1.72 | 1.58 |
| 20 | 8 |
1.82 | 1.69 |
| 25 | 7 |
1.85 | 1.72 |
|
