t-分布临界值表

P{t(k)>tα }= α

tα  α

k

0.25

0.10

0.05

0.025

0.01

0.005

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

1.0000

0.8165

0.7649

0.7407

0.7267

0.7176

0.7111

0.7064

0.7027

0.6998

0.6974

0.6955

0.6938

0.6924

0.6912

0.6901

0.6892

0.6884

0.6876

0.6870

0.6864

0.6858

0.6853

0.6848

0.6844

0.6840

0.6837

0.6834

0.6830

0.6828

3.0777

1.8856

1.6377

1.5332

1.4759

1.4398

1.4149

1.3968

1.3830

1.3722

1.3634

1.3562

1.3502

1.3450

1.3406

1.3368

1.3334

1.3304

1.3277

1.3253

1.3232

1.3212

1.3195

1.3178

1.3163

1.3150

1.3137

1.3125

1.3114

1.3104

6.3138

2.9200

2.3534

2.1318

2.0150

1.9432

1.8946

1.8595

1.8331

1.8125

1.7959

1.7823

1.7709

1.7613

1.7531

1.7459

1.7396

1.7341

1.7291

1.7247

1.7207

1.7171

1.7139

1.7109

1.7081

1.7056

1.7033

1.7011

1.6991

1.6973

12.7062

4.3207

3.1824

2.7764

2.5706

2.4469

2.3646

2.3060

2.2622

2.2281

2.2010

2.1788

2.1604

2.1448

2.1315

2.1199

2.1098

2.1009

2.0930

2.0860

2.0796

2.0739

2.0687

2.0639

2.0595

2.0555

2.0518

2.0484

2.0452

2.0423

31.8207

6.9646

4.5407

3.7469

3.3649

3.1427

2.9980

2.8965

2.8214

2.7638

2.7181

2.6810

2.6503

2.6245

2.6025

2.5835

2.5669

2.5524

2.5395

2.5280

2.5177

2.5083

2.4999

2.4922

2.4851

2.4786

2.4727

2.4671

2.4620

2.4573

63.6574

9.9248

5.8409

4.6041

4.0322

3.7074

3.4995

3.3554

3.2498

3.1693

3.1058

3.0545

3.0123

2.9768

2.9467

2.9028

2.8982

2.8784

2.8609

2.8453

2.8314

2.8188

2.8073

2.7969

2.7874

2.7787

2.7707

2.7633

2.7564

2.7500