t-table : Probability of a larger absolute value (two tailed test)

d.f.

1.000

0.900

0.800

0.700

0.600

0.500

0.400

0.300

0.200

0.180

0.160

0.140

0.120

0.100

0.080

0.060

0.040

0.020

d.f.

1

0.000

0.158

0.325

0.510

0.727

1.000

1.376

1.963

3.078

3.442

3.895

4.474

5.242

6.314

7.916

10.579

15.894

31.821

1

2

0.000

0.142

0.289

0.445

0.617

0.816

1.061

1.386

1.886

2.026

2.189

2.383

2.620

2.920

3.320

3.896

4.849

6.965

2

3

0.000

0.137

0.277

0.424

0.584

0.765

0.978

1.250

1.638

1.741

1.859

1.995

2.156

2.353

2.605

2.951

3.482

4.541

3

4

0.000

0.134

0.271

0.414

0.569

0.741

0.941

1.190

1.533

1.623

1.723

1.838

1.971

2.132

2.333

2.601

2.999

3.747

4

5

0.000

0.132

0.267

0.408

0.559

0.727

0.920

1.156

1.476

1.558

1.649

1.753

1.873

2.015

2.191

2.422

2.757

3.365

5

6

0.000

0.131

0.265

0.404

0.553

0.718

0.906

1.134

1.440

1.517

1.603

1.700

1.812

1.943

2.104

2.313

2.612

3.143

6

7

0.000

0.130

0.263

0.402

0.549

0.711

0.896

1.119

1.415

1.489

1.572

1.664

1.770

1.895

2.046

2.241

2.517

2.998

7

8

0.000

0.130

0.262

0.399

0.546

0.706

0.889

1.108

1.397

1.469

1.549

1.638

1.740

1.860

2.004

2.189

2.449

2.896

8

9

0.000

0.129

0.261

0.398

0.543

0.703

0.883

1.100

1.383

1.454

1.532

1.619

1.718

1.833

1.973

2.150

2.398

2.821

9

10

0.000

0.129

0.260

0.397

0.542

0.700

0.879

1.093

1.372

1.442

1.518

1.603

1.700

1.812

1.948

2.120

2.359

2.764

10

11

0.000

0.129

0.260

0.396

0.540

0.697

0.876

1.088

1.363

1.432

1.507

1.591

1.686

1.796

1.928

2.096

2.328

2.718

11

12

0.000

0.128

0.259

0.395

0.539

0.695

0.873

1.083

1.356

1.424

1.498

1.580

1.674

1.782

1.912

2.076

2.303

2.681

12

13

0.000

0.128

0.259

0.394

0.538

0.694

0.870

1.079

1.350

1.417

1.490

1.572

1.664

1.771

1.899

2.060

2.282

2.650

13

14

0.000

0.128

0.258

0.393

0.537

0.692

0.868

1.076

1.345

1.411

1.484

1.565

1.656

1.761

1.887

2.046

2.264

2.624

14

15

0.000

0.128

0.258

0.393

0.536

0.691

0.866

1.074

1.341

1.406

1.478

1.558

1.649

1.753

1.878

2.034

2.249

2.602

15

16

0.000

0.128

0.258

0.392

0.535

0.690

0.865

1.071

1.337

1.402

1.474

1.553

1.642

1.746

1.869

2.024

2.235

2.583

16

17

0.000

0.128

0.257

0.392

0.534

0.689

0.863

1.069

1.333

1.398

1.469

1.548

1.637

1.740

1.862

2.015

2.224

2.567

17

18

0.000

0.127

0.257

0.392

0.534

0.688

0.862

1.067

1.330

1.395

1.466

1.544

1.632

1.734

1.855

2.007

2.214

2.552

18

19

0.000

0.127

0.257

0.391

0.533

0.688

0.861

1.066

1.328

1.392

1.462

1.540

1.628

1.729

1.850

2.000

2.205

2.539

19

20

0.000

0.127

0.257

0.391

0.533

0.687

0.860

1.064

1.325

1.389

1.459

1.537

1.624

1.725

1.844

1.994

2.197

2.528

20

21

0.000

0.127

0.257

0.391

0.532

0.686

0.859

1.063

1.323

1.387

1.457

1.534

1.621

1.721

1.840

1.988

2.189

2.518

21

22

0.000

0.127

0.256

0.390

0.532

0.686

0.858

1.061

1.321

1.385

1.454

1.531

1.618

1.717

1.835

1.983

2.183

2.508

22

23

0.000

0.127

0.256

0.390

0.532

0.685

0.858

1.060

1.319

1.383

1.452

1.529

1.615

1.714

1.832

1.978

2.177

2.500

23

24

0.000

0.127

0.256

0.390

0.531

0.685

0.857

1.059

1.318

1.381

1.450

1.526

1.612

1.711

1.828

1.974

2.172

2.492

24

25

0.000

0.127

0.256

0.390

0.531

0.684

0.856

1.058

1.316

1.379

1.448

1.524

1.610

1.708

1.825

1.970

2.167

2.485

25

26

0.000

0.127

0.256

0.390

0.531

0.684

0.856

1.058

1.315

1.378

1.446

1.522

1.608

1.706

1.822

1.967

2.162

2.479

26

27

0.000

0.127

0.256

0.389

0.531

0.684

0.855

1.057

1.314

1.376

1.445

1.521

1.606

1.703

1.819

1.963

2.158

2.473

27

28

0.000

0.127

0.256

0.389

0.530

0.683

0.855

1.056

1.313

1.375

1.443

1.519

1.604

1.701

1.817

1.960

2.154

2.467

28

29

0.000

0.127

0.256

0.389

0.530

0.683

0.854

1.055

1.311

1.374

1.442

1.517

1.602

1.699

1.814

1.957

2.150

2.462

29

30

0.000

0.127

0.256

0.389

0.530

0.683

0.854

1.055

1.310

1.373

1.441

1.516

1.600

1.697

1.812

1.955

2.147

2.457

30

32

0.000

0.127

0.255

0.389

0.530

0.682

0.853

1.054

1.309

1.371

1.439

1.513

1.597

1.694

1.808

1.950

2.141

2.449

32

34

0.000

0.127

0.255

0.389

0.529

0.682

0.852

1.052

1.307

1.369

1.436

1.511

1.595

1.691

1.805

1.946

2.136

2.441

34

36

0.000

0.127

0.255

0.388

0.529

0.681

0.852

1.052

1.306

1.367

1.435

1.509

1.593

1.688

1.802

1.942

2.131

2.434

36

38

0.000

0.127

0.255

0.388

0.529

0.681

0.851

1.051

1.304

1.366

1.433

1.507

1.591

1.686

1.799

1.939

2.127

2.429

38

40

0.000

0.126

0.255

0.388

0.529

0.681

0.851

1.050

1.303

1.365

1.432

1.506

1.589

1.684

1.796

1.936

2.123

2.423

40

45

0.000

0.126

0.255

0.388

0.528

0.680

0.850

1.049

1.301

1.362

1.429

1.502

1.585

1.679

1.791

1.929

2.115

2.412

45

50

0.000

0.126

0.255

0.388

0.528

0.679

0.849

1.047

1.299

1.360

1.426

1.500

1.582

1.676

1.787

1.924

2.109

2.403

50

75

0.000

0.126

0.254

0.387

0.527

0.678

0.846

1.044

1.293

1.353

1.419

1.492

1.573

1.665

1.775

1.910

2.090

2.377

75

100

0.000

0.126

0.254

0.386

0.526

0.677

0.845

1.042

1.290

1.350

1.416

1.488

1.568

1.660

1.769

1.902

2.081

2.364

100

¥

0.000

0.126

0.253

0.385

0.524

0.674

0.842

1.036

1.282

1.341

1.405

1.476

1.555

1.645

1.751

1.881

2.054

2.326

¥

d.f.

0.500

0.450

0.400

0.350

0.300

0.250

0.200

0.150

0.100

0.090

0.080

0.070

0.060

0.050

0.040

0.030

0.020

0.010

d.f.

t-table : Probability of a larger value (one tailed test)