26  Appendix 2

Table 26.1: Critical values \(r_p (p, df, \alpha = 0.05)\) for Duncan’s multiple range tests.
\(df \backslash p\) 2 3 4 5 6 7 8 9 10 11 12 15 20
1 17.969 17.969 17.969 17.969 17.969 17.969 17.969 17.969 17.969 17.969 17.969 17.969 17.969
2 6.085 6.085 6.085 6.085 6.085 6.085 6.085 6.085 6.085 6.085 6.085 6.085 6.085
3 4.501 4.516 4.516 4.516 4.516 4.516 4.516 4.516 4.516 4.516 4.516 4.516 4.516
4 3.926 4.013 4.033 4.033 4.033 4.033 4.033 4.033 4.033 4.033 4.033 4.033 4.033
5 3.635 3.749 3.796 3.814 3.814 3.814 3.814 3.814 3.814 3.814 3.814 3.814 3.814
6 3.46 3.586 3.649 3.68 3.694 3.697 3.697 3.697 3.697 3.697 3.697 3.697 3.697
7 3.344 3.477 3.548 3.588 3.611 3.622 3.625 3.625 3.625 3.625 3.625 3.625 3.625
8 3.261 3.398 3.475 3.521 3.549 3.566 3.575 3.579 3.579 3.579 3.579 3.579 3.579
9 3.199 3.339 3.42 3.47 3.502 3.523 3.536 3.544 3.547 3.547 3.547 3.547 3.547
10 3.151 3.293 3.376 3.43 3.465 3.489 3.505 3.516 3.522 3.525 3.525 3.525 3.525
11 3.113 3.256 3.341 3.397 3.435 3.462 3.48 3.493 3.501 3.506 3.509 3.51 3.51
12 3.081 3.225 3.312 3.37 3.41 3.439 3.459 3.474 3.484 3.491 3.495 3.498 3.498
13 3.055 3.2 3.288 3.348 3.389 3.419 3.441 3.458 3.47 3.478 3.484 3.49 3.49
14 3.033 3.178 3.268 3.328 3.371 3.403 3.426 3.444 3.457 3.467 3.474 3.484 3.484
15 3.014 3.16 3.25 3.312 3.356 3.389 3.413 3.432 3.446 3.457 3.465 3.478 3.48
16 2.998 3.144 3.235 3.297 3.343 3.376 3.402 3.422 3.437 3.449 3.458 3.473 3.477
17 2.984 3.13 3.222 3.285 3.331 3.365 3.392 3.412 3.429 3.441 3.451 3.469 3.475
18 2.971 3.117 3.21 3.274 3.32 3.356 3.383 3.404 3.421 3.435 3.445 3.465 3.474
19 2.96 3.106 3.199 3.264 3.311 3.347 3.375 3.397 3.415 3.429 3.44 3.462 3.474
20 2.95 3.097 3.19 3.255 3.303 3.339 3.368 3.39 3.409 3.423 3.435 3.459 3.473
21 2.941 3.088 3.181 3.247 3.295 3.332 3.361 3.385 3.403 3.418 3.431 3.456 3.473
22 2.933 3.08 3.173 3.239 3.288 3.326 3.355 3.379 3.398 3.414 3.427 3.453 3.472
23 2.926 3.072 3.166 3.233 3.282 3.32 3.35 3.374 3.394 3.41 3.423 3.451 3.472
24 2.919 3.066 3.16 3.226 3.276 3.315 3.345 3.37 3.39 3.406 3.42 3.449 3.472
25 2.913 3.059 3.154 3.221 3.271 3.31 3.341 3.366 3.386 3.403 3.417 3.447 3.471
26 2.907 3.054 3.149 3.216 3.266 3.305 3.336 3.362 3.382 3.4 3.414 3.445 3.471
27 2.902 3.049 3.144 3.211 3.262 3.301 3.332 3.358 3.379 3.397 3.412 3.443 3.471
28 2.897 3.044 3.139 3.206 3.257 3.297 3.329 3.355 3.376 3.394 3.409 3.442 3.47
29 2.892 3.039 3.135 3.202 3.253 3.293 3.326 3.352 3.373 3.392 3.407 3.44 3.47
30 2.888 3.035 3.131 3.199 3.25 3.29 3.322 3.349 3.371 3.389 3.405 3.439 3.47
31 2.884 3.031 3.127 3.195 3.246 3.287 3.319 3.346 3.368 3.387 3.403 3.438 3.47
32 2.881 3.028 3.123 3.192 3.243 3.284 3.317 3.344 3.366 3.385 3.401 3.436 3.47
33 2.877 3.024 3.12 3.188 3.24 3.281 3.314 3.341 3.364 3.383 3.399 3.435 3.47
34 2.874 3.021 3.117 3.185 3.238 3.279 3.312 3.339 3.362 3.381 3.398 3.434 3.469
35 2.871 3.018 3.114 3.183 3.235 3.276 3.309 3.337 3.36 3.379 3.396 3.433 3.469
36 2.868 3.015 3.111 3.18 3.232 3.274 3.307 3.335 3.358 3.378 3.395 3.432 3.469
37 2.865 3.013 3.109 3.178 3.23 3.272 3.305 3.333 3.356 3.376 3.393 3.431 3.469
38 2.863 3.01 3.106 3.175 3.228 3.27 3.303 3.331 3.355 3.375 3.392 3.431 3.469
39 2.861 3.008 3.104 3.173 3.226 3.268 3.301 3.33 3.353 3.373 3.391 3.43 3.469
40 2.858 3.005 3.102 3.171 3.224 3.266 3.3 3.328 3.352 3.372 3.389 3.429 3.469
48 2.843 2.991 3.087 3.157 3.211 3.253 3.288 3.318 3.342 3.363 3.382 3.424 3.468
60 2.829 2.976 3.073 3.143 3.198 3.241 3.277 3.307 3.333 3.355 3.374 3.419 3.468
80 2.814 2.961 3.059 3.13 3.185 3.229 3.266 3.297 3.323 3.346 3.366 3.414 3.467
120 2.8 2.947 3.045 3.116 3.172 3.217 3.254 3.286 3.313 3.337 3.358 3.409 3.466
240 2.786 2.933 3.031 3.103 3.159 3.205 3.243 3.276 3.304 3.329 3.35 3.404 3.466
\(\infty\) 2.772 2.918 3.017 3.089 3.146 3.193 3.232 3.265 3.294 3.32 3.343 3.399 3.466