Making Sense of Data: A Practical Guide to Exploratory Data Analysis and Data Mining

A.4 F-DISTRIBUTION

Tables A.4, A.5, A.6 and A.7 show the F-statistic for four different values of α: 0.1, 0.05, 0.01 and 0.005. v₁ is the number of degrees of freedom for the numerator and v₂ is the number of degrees of freedom for the denominator. Figure A.4 illustrates the F-distribution. For example, to look up a critical value for the F-statistics where the numerator degrees of freedom (v₁) are 6 and the denominator degrees of freedom (v₂) are 15 and α is 0.05, using Table A.5, is 3.94.

Figure A.4. F-distribution

Table A.4. F-distribution where α = 0.1

Table A.5. F-distribution where α = 0.05

Table A.6. F-distribution where α = 0.01

Table A.7. F-distribution where α = 0.005