n

0.05

0.025

0.01

0.005

8

2.403852

2.886371

3.542152

4.076645

9

2.035884

2.421404

2.967075

3.244028

10

2.035884

2.345177

2.863018

3.214813

11

1.997151

2.336451

2.768128

3.128150

12

1.992236

2.322638

2.738997

3.106802

13

2.117835

2.282598

2.674553

2.977316

14

2.159492

2.234117

2.695154

2.990559

15

1.952256

2.255887

2.648058

2.939312

16

1.925327

2.233314

2.616452

2.894716

17

2.264775

2.264775

2.589332

2.864603

18

2.294804

2.294804

2.584305

2.837560

19

1.971807

2.191765

2.551924

2.834909

20

2.003801

2.189228

2.539654

2.798223

21

2.192236

2.373854

2.499491

2.794317

22

2.163950

2.373854

2.524580

2.752670

23

2.088616

2.163827

2.480621

2.765330

24

2.113799

2.171688

2.494098

2.759386

25

2.109428

2.460219

2.484072

2.731530

26

2.099438

2.479246

2.497775

2.753092

27

2.096300

2.182043

2.497411

2.752280

28

2.090605

2.202707

2.475614

2.696693

29

2.079096

2.531521

2.531521

2.726458

30

2.074818

2.520912

2.547550

2.711261

45

2.146091

2.349346

2.732897

2.732897

60

2.155180

2.351812

2.600462

2.745563

90

2.215773

2.454552

2.718683

3.023477

120

2.151836

2.427165

2.726720

2.920707