Friedman Test Graph. The test is similar to the kruskal wallis test we will use the terminology from kruskal wallis test and two factor anova without replication. This tutorial explains how to perform the friedman test in stata.
No normality assumption is required. The graph showed the average rate of cervical dilation was about 1 centimetre per hour. S is the test statistic for the friedman test.
Where k the number of groups treatments n the number of subjects r j is the sum of the.
Under the null hypothesis the chi square distribution approximates the distribution of s. Each row is ranked separately. Where k the number of groups treatments n the number of subjects r j is the sum of the. The friedman test first ranks the values in each matched set each row from low to high.
