 |
Behaviour of a quality index
Simulates (via Monte Carlo) a quality index and draws a curve of its
behaviour. |
|
|
| Distribution: |
(a)
(b) |
Distribution of the variable of which the
quality index will be simulated, and type of
quality index (see below). |
| n |
|
Sample size. |
| AQL, α |
%
% |
Acceptable quality level, producer's risk. |
| ntr, .repeat, m |
|
No. of trials (samples), repeatability (0 for none),
no. of histogram classes. |
| qmin, qmax;
fmax |
;
|
Graph goes from
qmin to qmax; and y to
fmax (auto if 0). |
| Show values |
|
Shows the coordinates of the graph. |
Simulates a quality index, Q, from a sample of
observations of a given random variable via Monte Carlo, and draws a curve
(a histogram) of its values. The mean is set at μ = 5
(and, if appropriate, σ = 1). The
"upper specification limit", U, is calculated to match the
specified AQL. The proposed Q 's are of the following types:
| (a) |
 |
|
(b) |
 |
For the Gaussian distribution, (a) is always assumed.
|
|
|
Reference:
• Eric W.
Weisstein (Gaussian Distribution). From MathWorld--A Wolfram Web
Resource. |
