The F.INV.RT function calculates the inverse of the right-tailed F probability distribution. Also called the Fisher-Snedecor distribution or Snedecor’s F distribution.
Sample Usage
F.INV.RT(0.42, 2, 3)
F.INV.RT(A2, B2, C2)
Syntax
F.INV.RT(probability, degrees_freedom1, degrees_freedom2)
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probability- The probability associated with the right-tailed F-distribution.-
Must be greater than
0and less than1.
-
-
degrees_freedom1- The number of degrees of freedom of the numerator of the test statistic. -
degrees_freedom2- The number of degrees of freedom of the denominator of the test statistic.
Notes
-
Both
degrees_freedom1anddegrees_freedom2are truncated to an integer in the calculation if a non-integer is provided as an argument. -
Both
degrees_freedom1anddegrees_freedom2must be at least1. -
All arguments must be numeric.
-
F.INV.RTis synonymous withFINV.
See Also
CHIINV: Calculates the inverse of the right-tailed chi-squared distribution.
F.DIST: Calculates the right-tailed F probability distribution (degree of diversity) for two data sets with given input x. Alternately called Fisher-Snedecor distribution or Snedecor's F distribution.
F.INV: Calculates the inverse of the left-tailed F probability distribution. Also called the Fisher-Snedecor distribution or Snedecor’s F distribution.
FTEST: Returns the probability associated with an F-test for equality of variances. Determines whether two samples are likely to have come from populations with the same variance.
TINV: Calculates the inverse of the two-tailed TDIST function.
Example
Suppose you want to find the cutoff for the F statistic associated with a p-value of 0.05. With 4 and 5 as the degrees of freedom, you can consider any F statistic larger than 5.19 to be statistically significant.
| A | B | C | D | |
|---|---|---|---|---|
| 1 | Probability | Degrees freedom numerator | Degrees freedom denominator | Solution |
| 2 | 0.05 | 4 | 5 | 5.192167773 |
| 3 | 0.05 | 4 | 5 | =F.INV.RT(0.05, 4, 5) |
| 4 | 0.05 | 4 | 5 | =F.INV.RT(A2, B2, C2) |