The steps involved in performing the Kruskal Wallis H test are as follows:
1. Rank all the data: Combine the data from all groups and rank them from smallest to largest. 2. Calculate the test statistic: Using the ranks, compute the test statistic \( H \) which is based on the sum of ranks for each group. 3. Determine the significance: Compare the calculated \( H \) value to the critical value from the Chi-square distribution table with \( k-1 \) degrees of freedom, where \( k \) is the number of groups.
