NEW! Generate SPC charts with the new 2.0 release of CHARTrunner Lean.
| Sigma |
Sigma of the individuals (actual sigma)
Estimated sigma
Subgroup Size |
d2 |
Subgroup Size |
d2 |
2 |
1.128 |
14 |
3.407 |
3 |
1.693 |
15 |
3.472 |
4 |
2.059 |
16 |
3.532 |
5 |
2.326 |
17 |
3.588 |
6 |
2.534 |
18 |
3.640 |
7 |
2.704 |
19 |
3.689 |
8 |
2.847 |
20 |
3.735 |
9 |
2.970 |
21 |
3.778 |
10 |
3.078 |
22 |
3.819 |
11 |
3.173 |
23 |
3.858 |
12 |
3.258 |
24 |
3.895 |
13 |
3.336 |
25 |
3.931 |
Contact | New to quality? | Customer portal | Quality Advisor | Site map | Payment terms | Blog | Twitter
 PQ Systems, Inc. Dayton, Ohio USA Tel: 1-800-777-3020 |
 PQ Systems Europe Ltd. Formby, Merseyside UK Tel: 0044 (0) 1704 871465 |
 PQ Systems Pty. Ltd. Frankston, Victoria Australia Tel: +61 3 97701960 |