## Kruskal Wallis Test

## Formula:

`$H =\bigg(\dfrac{12}{N(N+1)}\sum_{j=1}^k \dfrac{R_j^2}{n_j} \bigg)-3(N+1)$`

where

- $k$ is the number of comparison groups
- $N$ is the total sample size
- $n_j$ is the sample size in the $j^{th}$ group
- $R_j$ is the sum of the ranks in the $j^{th}$ group

## Related Resources

Suggestions and comments will be appreciated.