“…Thus, homogeneity of means holds if the population means are all equal, regardless of whether other population attributes are shared. Depending on the context, the degree of similarity implied by the term "homogeneity" may vary from the minimum of a single common attribute, as in the equality of means, to the extreme of total sameness, that is, equivalence of the populations (Glaser, 2006). Pettitt's test is a nonparametric test that requires no assumption about the distribution of data.…”