Table 7.

By adjusting the scaling factor, we searched for the minimum and maximum scaling factors that the Mann–Whitney U test could accept. The Brown-Forsythe test accepted all data in the table

Group ID	Mean value rate	Maximum acceptable rate	U-statistic	p value	Minimum acceptable rate	U-statistic	p value
I.	0.547	0.500	21	0.681	0.417	17	0.934
II.	0.649	0.438	29	0.089	0.267	7	0.089
III.	0.67	0.444	27	0.164	0.222	6	0.059