Basic descriptors are supported by the results of nonparametric Kruskal–Wallis two-way analysis of variance (ANOVA) by ranks presented in Table 4. The ANOVA results are presented using the p-value approach to hypothesis testing (i.e., p-value 6 significance
level). Tukey’s post hoc test results, identifying the significant pairwise differences, are graphically presented in Fig. 2.