Reliability & Life Testing Handbook, Volume 1

Appendix F: Percentage Points, F-Distribution

This talbe gives the values of F such that


for selected values of m, the number of degrees of freedom of the numerator of F; and for selected values of n, the number of degrees of freedom of the denominator of F. The table also provides values corresponding to F( F) = 0.10, 0.05, 0.25, 0.01, 0.005, 0.001 since F 1- ? for m and n degrees of freedom is the reciprocal of F ? for n and m of degrees of freedom. Thus


APPENDIX F.1-F(F)=0.50

v 2

v 1

1

2

3

4

5

6

7

8

9

10

12

15

20

24

30

40

60

120

?

1

1.0000

1.5000

1.7092

1.8227

1.8936

1.9420

1.9771

2.0038

2.0247

2.0416

2.0676

2.0922

2.1191

2.1337

2.1450

2.1575

2.1717

2.1848

2.1981

2

0.6667

1.0000

1.1349

1.2071

1.2819

1.2824

1.3046

1.3213

1.3344

1.3450

1.3610

1.3771

1.3933

1.4014

1.4094

1.4176

1.4261

1.4344

1.427

3

0.5851

0.8811

1.0000

1.0632

1.1023

1.1289

1.1481

1.1628

1.1741

1.1833

1.1972

1.2111

1.2252

1.2323

1.2393

1.2465

1.2536

1.2608

1.2660

4

0.5486

0.8284

0.9405

1.0000

1.0347

1.0616

1.0797

1.0933

1.1040

1.1126

1.1266

1.1386

1.1517

1.1583

1.1450

1.1716

1.1782

1.1849

1.1916

5

0.5281

0.7988

0.9072

0.9646

1.0000

1.0240

1.0414

1.0545

1.0648

1.0730

1.0855

1.0981

1.1106

1.1170

1.1233

1.1298

1.1361

1.1426

1.1490

6

0.5149

0.7798

0.8858

0.9419

0.9765

1.0000

1.0170

1.02797

1.0398

1.0476

1.0600

1.0722

1.0845

1.0007

1.0949

1.1032

1.1093

1.1156

1.1219

7

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