“…Besides, the Mann-Whitney test and the Wilcoxon test are used to assess return to scale characterization (Puenpatom and Rosenman, 2008;Halkos and Tzeremes, 2009, 2010a, 2011aZhang et al, 2011), while the Jacknife and the Kruskal-Wallis tests are used to detect differences in the distribution of the efficiency scores (Waldo, 2007;Puenpatom and Rosenman, 2008). Waldo (2007), Halkos and Tzeremes (2011b), Haelermans and De Witte (2012), Broersma et al (2013), Sofi and Sharma (2015), Asatryan and De Witte (2015), Schubert and Yang (2016), Cordero et al (2017), Santín & Sicilia (2018), Lin and Zhu (2019) Note:. # is the symbol of cardinality, that is, the number of elements in a given set.…”