Table 3: The results of Wilcoxon Matched Pairs Test.
Valid N - the total number of pairs, T - Test statistic, Z - Z-score.
Parameter Valid N T Z p-value
p <.05000
p <.01000
Copper (in an aqueous solution) [mg l-1] & Copper (in an aqueous solution with 2% HUMAC Enviro after 5 days) [mg l-1] 9 0 2.66557 0.007686
Mercury in an aqueous solution [mg l-1] & Mercury (in an aqueous solution with 2% HUMAC Enviro after 5 days) [mg l-1] 6 4 1.362773 0.172956