|
Values of  and 
| |
Size of samples (n)
|
|
# Samples (k)
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
|
1
|
1.414
|
1.912
|
2.239
|
2.481
|
2.673
|
2.830
|
2.963
|
3.078
|
3.179
|
3.269
|
3.350
|
3.424
|
3.491
|
3.553
|
|
2
|
1.279
|
1.805
|
2.151
|
2.405
|
2.604
|
2.768
|
2.906
|
3.025
|
3.129
|
3.221
|
3.305
|
3.380
|
3.449
|
3.513
|
|
3
|
1.231
|
1.769
|
2.120
|
2.379
|
2.581
|
2.747
|
2.886
|
3.006
|
3.112
|
3.205
|
3.289
|
3.366
|
3.435
|
3.499
|
|
4
|
1.206
|
1.750
|
2.105
|
2.366
|
2.570
|
2.736
|
2.877
|
2.997
|
3.103
|
3.197
|
3.282
|
3.358
|
3.428
|
3.492
|
|
5
|
1.191
|
1.739
|
2.096
|
2.358
|
2.563
|
2.730
|
2.871
|
2.992
|
3.098
|
3.192
|
3.277
|
3.354
|
3.424
|
3.488
|
|
6
|
1.181
|
1.731
|
2.090
|
2.353
|
2.558
|
2.726
|
2.867
|
2.988
|
3.095
|
3.189
|
3.274
|
3.351
|
3.421
|
3.486
|
|
7
|
1.173
|
1.726
|
2.085
|
2.349
|
2.555
|
2.723
|
2.864
|
2.986
|
3.092
|
3.187
|
3.272
|
3.349
|
3.419
|
3.484
|
|
8
|
1.168
|
1.721
|
2.082
|
2.346
|
2.552
|
2.720
|
2.862
|
2.984
|
3.090
|
3.185
|
3.270
|
3.347
|
3.417
|
3.482
|
|
9
|
1.164
|
1.718
|
2.080
|
2.344
|
2.550
|
2.719
|
2.860
|
2.982
|
3.089
|
3.184
|
3.269
|
3.346
|
3.416
|
3.481
|
|
10
|
1.160
|
1.716
|
2.077
|
2.342
|
2.549
|
2.717
|
2.859
|
2.981
|
3.088
|
3.183
|
3.268
|
3.345
|
3.415
|
3.480
|
|
11
|
1.157
|
1.714
|
2.076
|
2.340
|
2.547
|
2.716
|
2.858
|
2.980
|
3.087
|
3.182
|
3.267
|
3.344
|
3.415
|
3.479
|
|
12
|
1.155
|
1.712
|
2.074
|
2.3439
|
2.546
|
2.715
|
2.857
|
2.979
|
3.086
|
3.181
|
3.266
|
3.343
|
3.414
|
3.479
|
|
13
|
1.153
|
1.710
|
2.073
|
2.338
|
2.545
|
2.714
|
2.856
|
2.978
|
3.085
|
3.180
|
3.266
|
3.343
|
3.413
|
3.478
|
|
14
|
1.151
|
1.709
|
2.072
|
2.337
|
2.545
|
2.714
|
2.856
|
2.978
|
3.085
|
3.180
|
3.265
|
3.342
|
3.413
|
3.478
|
|
15
|
1.150
|
1.708
|
2.071
|
2.337
|
2.544
|
2.713
|
2.855
|
2.977
|
3.084
|
3.179
|
3.265
|
3.342
|
3.412
|
3.477
|
| |
|
|
1.128
|
1.693
|
2.059
|
2.326
|
2.534
|
2.704
|
2.847
|
2.970
|
3.078
|
3.173
|
3.259
|
3.336
|
3.407
|
3.472
|
| Duncan A. J (1986), Quality Control and Industrial Statistics Appendix D3 |
|
|
