F-ratio


Also found in: Wikipedia.

F-ratio

Etymology: Sir Ronald Aylmer Fisher, British statistician, 1890-1962
1 the variance between the means of several groups relative to the variance within the groups, used in the F-test in the analysis of variance.
2 the variance between or within treatments.

F-ratio (F-test),

n a value used in determining whether the difference between two variables is statistically significant or stable. A larger variance is divided by a smaller variance, both of which are the results of analysis of variance procedures. The value for F is looked up in a table that shows the probability of occurrence of a ratio of this size.
References in periodicals archive ?
On average, the F-ratio of our ART-TPP algorithm is lower than that of ART-RP about 2 percent, but greater than that of ART-BP about 2.
In Table 3 we see that the F-ratio is larger than [F.
No significant relationship was found between either mean length (ANOVA, df = 1, F-ratio = 0.
Table 1: ANOVA test for tensile strength of variousfiber volume fraction Source SS df MS F-Ratio P-value BG 3739.
30 13 Table 2: Effect of education on sources: means, F-ratio, and significance comparisons Source Education * Scheffe 1 2 3 F Comparison ** Conference papers 2.
Given five degrees of freedom for the model and eight for error, the critical F-ratio for a 95% confidence level is 3.
Skills Summary Business skills Mean score Attribute Headhunters Practitioners Educators F-ratio Traditional skills 2.
For the family income analysis, an F-ratio for this interaction of 2.
70 guards against abuse Table 5: Relationship between copyright, use, and author's benefits Source DF SS MS F-Ratio obs Between group 2 2645.