Control chart table

Factors for Computing Center Line and Three Sigma Limits

Observations in Sample (n) A A2 D1 D2 D3 D4 A3 B3 B4 d2 c4 2 2.121 1.880 0 3.686 0 3.267 2.659 0 3.267 1.128 0.7979 3 1.732 1.023 0 4.358 0 2.574 1.954 0 2.568 1.693 0.8862 4 1.500 0.729 0 4.698 0 2.282 1.628 0 2.266 2.059 0.9213 5 1.342 0.577 0 4.918 0 2.114 1.427 0 2.089 2.326 0.9400 6 1.225 0.483 0 5.078 0 2.004 1.287 0.030 1.970 2.534 0.9515 7 1.134 0.419 0.204 5.204 0.076 1.924 1.182 0.118 1.882 2.704 0.9594 8 1.061 0.373 0.388 5.306 0.136 1.864 1.099 0.185 1.815 2.847 0.9650 9 1.000 0.337 0.547 5.393 0.184 1.816 1.032 0.239 1.761 2.970 0.9693 10 0.949 0.308 0.687 5.469 0.223 1.777 0.975 0.284 1.716 3.078 0.9727 11 0.905 0.285 0.811 5.535 0.256 1.744 0.927 0.321 1.679 3.173 0.9754 12 0.866 0.266 0.922 5.594 0.283 1.717 0.886 0.354 1.646 3.258 0.9776 13 0.832 0.249 1.025 5.647 0.307 1.693 0.850 0.382 1.618 3.336 0.9794 14 0.802 0.235 1.118 5.696 0.328 1.672 0.817 0.406 1.594 3.407 0.9810 15 0.775 0.223 1.203 5.741 0.347 1.653 0.789 0.428 1.572 3.472 0.9823 16 0.750 0.212 1.282 5.782 0.363 1.637 0.763 0.448 1.552 3.532 0.9835 17 0.728 0.203 1.356 5.820 0.378 1.622 0.739 0.466 1.534 3.588 0.9845 18 0.0707 0.194 1.424 5.856 0.391 1.608 0.718 0.482 1.518 3.640 0.9854 19 0.688 0.187 1.487 5.891 0.403 1.597 0.698 0.497 1.503 3.689 0.9862 20 0.671 0.180 1.549 5.921 0.415 1.585 0.680 0.510 1.490 3.735 0.9869 21 0.655 0.173 1.605 5.951 0.425 1.575 0.663 0.523 1.477 3.778 0.9876 22 0.640 0.167 1.659 5.979 0.434 1.566 0.647 0.534 1.466 3.819 0.9882 23 0.626 0.162 1.710 6.006 0.443 1.557 0.633 0.545 1.455 3.858 0.9887 24 0.612 0.157 1.759 6.031 0.451 1.548 0.619 0.555 1.445 3.895 0.9892 25 0.600 0.153 1.806 6.056 0.459 1.541 0.606 0.565 1.435 3.931 0.9896

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