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Table of Contents

 


 

T Distribution Critical Values

(2-Tailed)

 

Alpha

 

 

Alpha

 

 

Alpha

 

DF

0.10

0.05

0.01

 

DF

0.10

0.05

0.01

 

DF

0.10

0.05

0.01

 

1

6.314

12.706

63.657

 

41

1.683

2.020

2.701

 

81

1.664

1.990

2.638

 

2

2.920

4.303

9.925

 

42

1.682

2.018

2.698

 

82

1.664

1.989

2.637

 

3

2.353

3.182

5.841

 

43

1.681

2.017

2.695

 

83

1.663

1.989

2.636

 

4

2.132

2.776

4.604

 

44

1.680

2.015

2.692

 

84

1.663

1.989

2.636

 

5

2.015

2.571

4.032

 

45

1.679

2.014

2.690

 

85

1.663

1.988

2.635

 

6

1.943

2.447

3.707

 

46

1.679

2.013

2.687

 

86

1.663

1.988

2.634

 

7

1.895

2.365

3.499

 

47

1.678

2.012

2.685

 

87

1.663

1.988

2.634

 

8

1.860

2.306

3.355

 

48

1.677

2.011

2.682

 

88

1.662

1.987

2.633

 

9

1.833

2.262

3.250

 

49

1.677

2.010

2.680

 

89

1.662

1.987

2.632

 

10

1.812

2.228

3.169

 

50

1.676

2.009

2.678

 

90

1.662

1.987

2.632

 

11

1.796

2.201

3.106

 

51

1.675

2.008

2.676

 

91

1.662

1.986

2.631

 

12

1.782

2.179

3.055

 

52

1.675

2.007

2.674

 

92

1.662

1.986

2.630

 

13

1.771

2.160

3.012

 

53

1.674

2.006

2.672

 

93

1.661

1.986

2.630

 

14

1.761

2.145

2.977

 

54

1.674

2.005

2.670

 

94

1.661

1.986

2.629

 

15

1.753

2.131

2.947

 

55

1.673

2.004

2.668

 

95

1.661

1.985

2.629

 

16

1.746

2.120

2.921

 

56

1.673

2.003

2.667

 

96

1.661

1.985

2.628

 

17

1.740

2.110

2.898

 

57

1.672

2.002

2.665

 

97

1.661

1.985

2.627

 

18

1.734

2.101

2.878

 

58

1.672

2.002

2.663

 

98

1.661

1.984

2.627

 

19

1.729

2.093

2.861

 

59

1.671

2.001

2.662

 

99

1.660

1.984

2.626

 

20

1.725

2.086

2.845

 

60

1.671

2.000

2.660

 

100

1.660

1.984

2.626

 

21

1.721

2.080

2.831

 

61

1.670

2.000

2.659

 

101

1.660

1.984

2.625

 

22

1.717

2.074

2.819

 

62

1.670

1.999

2.657

 

102

1.660

1.983

2.625

 

23

1.714

2.069

2.807

 

63

1.669

1.998

2.656

 

103

1.660

1.983

2.624

 

24

1.711

2.064

2.797

 

64

1.669

1.998

2.655

 

104

1.660

1.983

2.624

 

25

1.708

2.060

2.787

 

65

1.669

1.997

2.654

 

105

1.659

1.983

2.623

 

26

1.706

2.056

2.779

 

66

1.668

1.997

2.652

 

106

1.659

1.983

2.623

 

27

1.703

2.052

2.771

 

67

1.668

1.996

2.651

 

107

1.659

1.982

2.623

 

28

1.701

2.048

2.763

 

68

1.668

1.995

2.650

 

108

1.659

1.982

2.622

 

29

1.699

2.045

2.756

 

69

1.667

1.995

2.649

 

109

1.659

1.982

2.622

 

30

1.697

2.042

2.750

 

70

1.667

1.994

2.648

 

110

1.659

1.982

2.621

 

31

1.696

2.040

2.744

 

71

1.667

1.994

2.647

 

111

1.659

1.982

2.621

 

32

1.694

2.037

2.738

 

72

1.666

1.993

2.646

 

112

1.659

1.981

2.620

 

33

1.692

2.035

2.733

 

73

1.666

1.993

2.645

 

113

1.658

1.981

2.620

 

34

1.691

2.032

2.728

 

74

1.666

1.993

2.644

 

114

1.658

1.981

2.620

 

35

1.690

2.030

2.724

 

75

1.665

1.992

2.643

 

115

1.658

1.981

2.619

 

36

1.688

2.028

2.719

 

76

1.665

1.992

2.642

 

116

1.658

1.981

2.619

 

37

1.687

2.026

2.715

 

77

1.665

1.991

2.641

 

117

1.658

1.980

2.619

 

38

1.686

2.024

2.712

 

78

1.665

1.991

2.640

 

118

1.658

1.980

2.618

 

39

1.685

2.023

2.708

 

79

1.664

1.990

2.640

 

119

1.658

1.980

2.618

 

40

1.684

2.021

2.704

 

80

1.664

1.990

2.639

 

120

1.658

1.980

2.617

 

 

 

 

 

 

 

 

 

 

 

8

1.645

1.960

2.576

 

This is only a portion of a much larger table.

 


 
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