Reliability & Life Testing Handbook, Volume 1

Appendix E: Student's t Distribution Percentile Values.

Tabulation of the values of a versus t ? ; v for different values of v.


?

.40

.30

.20

.10

.050

.025

.010

.005

.001

.0006

v

1

.325

.727

1.376

3.078

6.314

12.71

31.82

63.66

318.3

636.6

2

.289

.617

1.061

1.836

2.920

4.303

6.965

9.925

22.33

31.60

3

.277

.584

.978

1.638

2.353

3.182

4.541

5.841

10.22

12.94

4

.271

.569

.941

1.533

2.132

2.776

3.747

4.604

7.173

8.610

5

.267

.559

.920

1.476

2.015

2.571

3.365

4.032

5.893

6.859

6

.265

.553

.906

1.440

1.943

2.447

3.143

3.707

5.208

5.959

7

.263

.549

.896

1.415

1.895

2.365

2.998

3.499

4.785

5.405

8

.262

.546

.889

1.397

1.860

2.306

2.896

3.355

4.501

5.041

9

.261

.543

.883

1.383

1.833

2.262

2.821

3.250

4.297

4.781

10

.260

.542

.879

1.372

1.812

2.228

2.764

3.169

4.144

4.587

11

.260

.540

.876

1.363

1.796

2.201

2.718

3.106

4.025

4.437

12

.259

.539

.873

1.356

1.782

2.179

2.681

3.055

3.930

4.318

13

.259

.538

.870

1.350

1.771

2.160

2.650

3.012

3.852

4.221

14

.258

.537

.868

1.345

1.761

2.145

2.624

2.977

3.787

4.140

15

.258

.536

.866

1.341

1.753

2.131

2.602

2.947

3.733

4.073

16

.258

.535

.865

1.337

1.746

2.120

2.583

2.921

3.686

4.015

17

.257

.534

.863

1.333

1.740

2.110

2.567

2.898

3.646

3.965

18

.257

.534

.862

1.330

1.734

2.101

2.552

2.878

3.611

3.922

19

.257

.533

.861

1.328

1.729

2.093

2.539

2.861

3.579

3.883

20

.257

.533

.860

1.325

1.725

2.086

2.528

2.845

3.552

3.850

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