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REFERENCE TABLES
QUALITY ASSURANCE TABLES STATISTICAL TABLES
:: Standard Factors for Control Charts
:: Distribution of Average Range
:: Run Length Limits for Run Charts
:: Normal Distribution
:: Poisson Distribution
:: t Distribution
:: Chi Square Distribution
:: F Distribution
TAGUCHI ORTHOGONAL ARRAYS  
:: Selected Taguchi Orthogonal Arrays

 

   
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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