CRITICALVALUESOFT

(Cont'd)

Level of significance for one-tailedtest
.05.025.01

Level of significance for two-tailed test
.10.05.02

.10

.005

.0005

df 26 27 28 29 30

.20

.01

.001 3.707 3.690 3.674 3.659 3.646

3.551 3.460 3.373 3.291

1.315 1.314 1.313 1.311 1.310

1.303 1.296 1.289 1.282

1.706 1.703 1.701 1.699 1.697

1.684 1.671 1.658 1.645

2.056 2.052 2.048 2.045 2.042

2.021 2.000 1.980 1.960

2.479 2.473 2.467 2.462 2.457

2.423 2.390 2.358 2.326

2.779 2.771 2.763 2.756 2.750

2.704 2.660 2.617 2.576

40
60 120
[!]