September 2024
Intermediate to advanced
386 pages
12h 2m
English
| Sample size (n) | Constants for use with mean rangeThe mean of a series of sample ranges. | Constants for use with standard deviation (σ) | Constants for use in USA range chartA graph with control lines used to monitor the precision of a process, being assessed by a plot of sample ranges.s based on | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| D′0.999 | D′0.001 | D′0.975 | D′0.025 | D0.999 | D0.001 | D0.975 | D0.025 | D2 | D4 | |
| 2 | 0.00 | 4.12 | 0.44 | 2.81 | 0.00 | 4.65 | 0.04 | 3.17 | 0 | 3.27 |
| 3 | 0.04 | 2.98 | 0.18 | 2.17 | 0.06 | 5.05 | 0.30 | 3.68 | 0 | 2.57 |
| 4 | 0.10 | 2.57 | 0.29 | 1.93 | 0.20 | 5.30 | 0.59 | 3.98 | 0 | 2.28 |
| 5 | 0.16 | 2.34 | 0.37 | 1.81 | 0.37 | 5.45 | 0.85 | 4.20 | 0 | 2.11 |
| 6 | 0.21 | 2.21 | 0.42 | 1.72 | 0.54 | 5.60 | 1.06 | 4.36 | 0 | 2.00 |
| 7 | 0.26 | 2.11 | 0.46 | 1.66 | 0.69 | 5.70 | 1.25 | 4.49 | 0.08 | 1.92 ... |
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