Two-way Fisher F-test calculator for analysis of variance (Anova)

 F-test is a calculator program using a model application (app) made with Delphi software.                                 The F-test is used in analysis of variance (Anova) to test the difference between standard deviations                                 under varying conditions.                                 The calculator program gives the probability of an F-test, given the F-value and                                 degrees of freedom of numerator (DF1) and denominator (DF2), and reversely                                 the value of the F-test given the probability.                                           Screenprint of the two-way Fisher F-test calculator model: Experiences: For improvement, I am interested to learn about your experiences with F-test. For this there is a contact form.

F-test calculator
F-distribution calculator

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More examples of F-test model graphics in the F-test calculator software

 In the F-test calculator model Fisher's cumulative             F-distribution is used In the F-test calculator software Fishers's density             F-distribution is used

 MATHEMATICS A numerical solution of Fisher's F- probability distribution is obtained when either DF1 or DF2 is even. When both are even, use the smallest. When both are uneven (odd) an approximate solution is to be found. DF1 is even         Pc = 1 - sn/2 [ 1 + n.t / 2 + n (n+2) t2 / 8 + n (n+2) (n+4) t3 / 48 + n (n+2 ) (n+4) (n+6) t4 / 384 . . . . . ] where: s = n / (m+n.z), t = 1-s, m = DF1, n = DF2, z = reference value for the variable y following the F-distribution       (like the F-test value itself), Pc = cumulative probability that can also be represented by the probability P(y