Table 4.
Results of the Kruskal–Wallis test.
| Dependent Variable: Young’s Modulus |
ANOVA of Kruskal–Wallis Ranks; Young’s Modulus Independent (Grouping) Rank: Reagent Kruskal-Wallis: H (7, N = 36) = 18.83, p = 0.0087 |
|||
|---|---|---|---|---|
| Code | N Valid | Sum of Ranks | Mean Rank | |
| 1 | 1 | 4 | 121 | 30.25 |
| 2 | 2 | 4 | 119 | 29.75 |
| 3 | 3 | 4 | 44 | 11 |
| 4 | 4 | 5 | 96 | 19.2 |
| 5 | 5 | 4 | 84.5 | 21.13 |
| 6 | 6 | 5 | 97.5 | 19.5 |
| 7 | 7 | 5 | 35 | 7 |
| 8 | 8 | 5 | 69 | 13.8 |
Where: Code—numerals assigned to individual substances, N valid—number of samples tested within a given group of samples, Sum of ranks—sum of ranks assigned to individual groups, Mean rank—equivalent of the arithmetic mean in parametric tests.