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16.3: t Distribution Table

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    49386
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    t Distribution Table (t Table)

    df

    Proportion (a) in One tail

    .25

    .20

    .15

    .10

    .05

    .025

    .01

    .005

    .0005

    Proportion (a) in Two tails combined

    .50

    .40

    .30

    .20

    .10

    .05

    .02

    .01

    .001

    1

    1.000

    1.376

    1.963

    3.078

    6.314

    12.706

    31.821

    63.657

    636.578

    2

    0.816

    1.061

    1.386

    1.886

    2.920

    4.303

    6.965

    9.925

    31.600

    3

    0.765

    1.978

    1.250

    1.638

    2.353

    3.182

    4.541

    5.841

    12.924

    4

    0.741

    1.941

    1.190

    1.533

    2.132

    2.776

    3.747

    4.604

    8.610

    5

    0.727

    0.920

    1.156

    1.476

    2.015

    2.571

    3.365

    4.032

    6.869

    6

    0.718

    0.906

    1.134

    1.440

    1.943

    2.447

    3.143

    3.707

    5.959

    7

    0.711

    0.896

    1.119

    1.415

    1.895

    2.365

    2.998

    3.499

    5.408

    8

    0.706

    0.889

    1.108

    1.397

    1.860

    2.306

    2.896

    3.355

    5.041

    9

    0.703

    0.883

    1.100

    1.383

    1.833

    2.262

    2.821

    3.250

    4.781

    10

    0.700

    0.879

    1.093

    1.372

    1.812

    2.228

    2.764

    3.169

    4.587

    11

    0.697

    0.876

    1.088

    1.363

    1.796

    2.201

    2.718

    3.106

    4.437

    12

    0.695

    0.873

    1.083

    1.356

    1.782

    2.179

    2.681

    3.055

    4.318

    13

    0.694

    0.870

    1.079

    1.350

    1.771

    2.160

    2.650

    3.012

    4.221

    14

    0.692

    0.868

    1.076

    1.345

    1.761

    2.145

    2.624

    2.977

    4.140

    15

    0.691

    0.866

    1.074

    1.341

    1.753

    2.131

    2.602

    2.947

    4.073

    16

    0.690

    0.865

    1.071

    1.337

    1.746

    2.120

    2.583

    2.921

    4.015

    17

    0.689

    0.863

    1.069

    1.333

    1.740

    2.110

    2.567

    2.898

    3.965

    18

    0.688

    0.862

    1.067

    1.330

    1.734

    2.101

    2.552

    2.878

    3.922

    19

    0.688

    0.861

    1.066

    1.328

    1.729

    2.093

    2.539

    2.861

    3.883

    20

    0.687

    0.860

    1.064

    1.325

    1.725

    2.086

    2.528

    2.845

    3.850

    21

    0.686

    0.859

    1.063

    1.323

    1.721

    2.080

    2.518

    2.831

    3.819

    22

    0.686

    0.858

    1.061

    1.321

    1.717

    2.074

    2.508

    2.819

    3.792

    23

    0.685

    0.858

    1.060

    1.319

    1.714

    2.069

    2.500

    2.807

    3.768

    24

    0.685

    0.857

    1.059

    1.318

    1.711

    2.064

    2.492

    2.797

    3.745

    25

    0.684

    0.856

    1.058

    1.316

    1.708

    2.060

    2.485

    2.787

    3.725

    26

    0.684

    0.856

    1.058

    1.315

    1.706

    2.056

    2.479

    2.779

    3.707

    27

    0.684

    0.855

    1.057

    1.314

    1.703

    2.052

    2.473

    2.771

    3.689

    28

    0.683

    0.855

    1.056

    1.313

    1.701

    2.048

    2.467

    2.763

    3.674

    29

    0.683

    0.854

    1.055

    1.311

    1.699

    2.045

    2.462

    2.756

    3.660

    30

    0.683

    0.854

    1.055

    1.310

    1.697

    2.042

    2.457

    2.750

    3.646

    40

    0.681

    0.851

    1.050

    1.303

    1.684

    2.021

    2.423

    2.704

    3.551

    60

    0.679

    0.848

    1.045

    1.296

    1.671

    2.000

    2.390

    2.660

    3.460

    120

    0.677

    0.845

    1.041

    1.289

    1.658

    1.980

    2.358

    2.617

    3.373

    0.674

    0.842

    1.036

    1.282

    1.645

    1.960

    2.326

    2.576

    3.290

    Adapted from “Tabla t” by Jsmura/Wikimedia Commons, CC BY-SA 4.0.

    This table taken from Cote et al, 2021, shared under a CC BY-NC-SA 4.0 license.


    16.3: t Distribution Table is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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