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Statistical function
F.INV.RT
Returns the inverse of the right-tailed F probability distribution.
Rarely usedDifficulty 1550 · AdvancedUsage rank #440 of 520
When to use it
The F critical value for a right-tail probability: what an F statistic must exceed to be significant.
The shape of it
- Syntax
=F.INV.RT(probability, deg_freedom1, deg_freedom2)
Worked examples
5%, (2,10)
=F.INV.RT(0.05,2,10) → 4.102821
5% on (2,10).
5%, (2,12)
=F.INV.RT(0.05,2,12) → 3.885294
5% on (2,12).
1%, (1,10)
=F.INV.RT(0.01,1,10) → 10.04429
1% on (1,10).
Worth knowing
- ANOVA tables list this as F crit.
- Replaces FINV.
- Numerator df first.
Where it goes wrong
- #NUM! for probability outside 0 to 1 or df below 1.
- Confusing tails gives the wrong critical value.
Related
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