1
2
3
4
5

6
7
8
9
10

11
12
13
14
15

.988
.900
.805
.729
.669

.622
.582
.549
.521
.497

.476
.458
.441
.426
.412

.997
.950
.878
.811
.754

.707
.666
.632
.602
.576

.553
.532
.514
.497
.482

.9995
.980
.934
.882
.833

.789
.750
.716
.685
.658

.634
.612
.592
.574
.558

.9999
.990
.959
.917
.874

.834
.798
.765
.735
.708

.684
.661
.641
.623
.606

Level of significancefor one-tailedtest

df

.05

.025

.01

.005

(= N

-

2;N

=

Level of significance for two-tailedtest

number of pairs)

.10

.05

.02

.01

16
17
18
19
20

21
22
23
24
25

26
27
28
29
30

.400
.389
.378
.369
.360

.352
.344
.337
.330
.323

.317
.311
.306
.301
.296

.468
.456
.444
.433
.423

.413
.404
.396
.388
.381

.374
.367
.361
.355
.349

.542
.528
.516
.503
.492

.482
.472
.462
.453
.445

.437
.430
.423
.416
.409

.590
.575
.561
.549
.537

.526
.515
.505
.496
.487

.479
.471
.463
.456
.449

(Cont’d)

Level of significancefor one-tailedtest

df

.05

.025

.01

.005

(= N

-

2;N

=

Level of significance for two-tailedtest

number of pairs)

.10

.05

.02

.01

35
40
45
50
60

70
80
90
100

.275
.257
.243
.231
.211

.195
.183
.173
.164

.325
.304
.288
.273
.250

.232
.217
.205
.195

.381
.358
.338
.322
.295

.274
.256
.242
.230

.418
.393
.372
.354
.325

.302
.283
.267
.254

(Cont’d)

Level of significancefor one-tailedtest

df

.05

.025

.01

.005

(= N

-

2;N

=

Level of significance for two-tailedtest

number of pairs)

.10

.05

.02

.01