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# Test F

Calculates the F-Test of two data samples.

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A F-test is any statistical test based on the F-distribution under the null hypothesis.

For more information on F-tests, refer to the corresponding Wikipedia article.

## Data

Variable 1 range: The reference of the range of the first data series to analyze.

Variable 2 range: The reference of the range of the second data series to analyze.

Results to: The reference of the top left cell of the range where the test will be displayed.

#### Agrupado por

Select whether the input data has columns or rows layout.

#### Exemplo

The following table has two data sets.

| A | B
--- | --- | ---
1 | 28 | 19
2 | 26 | 13
3 | 31 | 12
4 | 23 | 5
5 | 20 | 34
6 | 27 | 31
7 | 28 | 31
8 | 14 | 12
9 | 4 | 24
10 | 0 | 23
11 | 2 | 19
12 | 8 | 10
13 | 9 | 33

## Results for F-Test:

The following table shows the F-Test for the data series above:

Ftest |  |
Alfa | 0.05 |
| Variábel 1 | Variábel 2
Media | 16.9230769231 | 20.4615384615
Varianza | 125.0769230769 | 94.4358974359
Observacións | 13 | 13
df | 12 | 12
F | 1.3244637524 |
P (F<=f) cola dereita | 0.3170614146 |
F Crítico, cola dereita | 2.6866371125 |
P (F<=f) cola esquerda | 0.6829385854 |
F Crítico cola esquerda | 0.3722125312 |
P dúas colas | 0.6341228293 |
F Crítico, dúas colas | 0.3051313549 | 3.277277094

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Precisamos da súa axuda!