Table 24.

p-values of the Wilcoxon signed rank test based on the number of selected features reported in Table 23 (p-values ≤ 0.05 are in bold and significant).

Dataset	BPSO (the Best Performaing Method) vs.
	BHHO	BGSA	BWOA	BGWO	BBA	BALO	BMFO
$\mathbf{9}.\mathbf{43}\times {\mathbf{10}}^{-\mathbf{4}}$	$7.01\times {10}^{-1}$	$\mathbf{2}.\mathbf{35}\times {\mathbf{10}}^{-\mathbf{3}}$	$\mathbf{1}.\mathbf{70}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{1}.\mathbf{42}\times {\mathbf{10}}^{-\mathbf{3}}$	$\mathbf{1}.\mathbf{73}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{2}.\mathbf{12}\times {\mathbf{10}}^{-\mathbf{4}}$
Caucasian	$\mathbf{7}.\mathbf{44}\times {\mathbf{10}}^{-\mathbf{4}}$	$2.37\times {10}^{-1}$	$\mathbf{2}.\mathbf{65}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{1}.\mathbf{57}\times {\mathbf{10}}^{-\mathbf{4}}$	$5.41\times {10}^{-1}$	$\mathbf{1}.\mathbf{63}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{2}.\mathbf{02}\times {\mathbf{10}}^{-\mathbf{4}}$
Females	$\mathbf{1}.\mathbf{60}\times {\mathbf{10}}^{-\mathbf{4}}$	$2.30\times {10}^{-1}$	$\mathbf{1}.\mathbf{65}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{1}.\mathbf{61}\times {\mathbf{10}}^{-\mathbf{4}}$	$4.16\times {10}^{-1}$	$\mathbf{1}.\mathbf{62}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{1}.\mathbf{51}\times {\mathbf{10}}^{-\mathbf{4}}$
Age > 50	$1.02\times {10}^{-1}$	$1.37\times {10}^{-1}$	$\mathbf{7}.\mathbf{30}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{1}.\mathbf{67}\times {\mathbf{10}}^{-\mathbf{4}}$	$7.31\times {10}^{-1}$	$\mathbf{1}.\mathbf{56}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{1}.\mathbf{73}\times {\mathbf{10}}^{-\mathbf{4}}$
Hispanic	$\mathbf{1}.\mathbf{37}\times {\mathbf{10}}^{-\mathbf{2}}$	$\mathbf{1}.\mathbf{20}\times {\mathbf{10}}^{-\mathbf{2}}$	$\mathbf{1}.\mathbf{40}\times {\mathbf{10}}^{-\mathbf{3}}$	$\mathbf{1}.\mathbf{43}\times {\mathbf{10}}^{-\mathbf{4}}$	$1.08\times {10}^{-1}$	$\mathbf{1}.\mathbf{51}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{1}.\mathbf{44}\times {\mathbf{10}}^{-\mathbf{4}}$
Age ≤ 50	$\mathbf{1}.\mathbf{58}\times {\mathbf{10}}^{-\mathbf{3}}$	$1.62\times {10}^{-1}$	$\mathbf{4}.\mathbf{79}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{1}.\mathbf{67}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{2}.\mathbf{65}\times {\mathbf{10}}^{-\mathbf{2}}$	$\mathbf{1}.\mathbf{70}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{1}.\mathbf{61}\times {\mathbf{10}}^{-\mathbf{4}}$
Males	$\mathbf{3}.\mathbf{42}\times {\mathbf{10}}^{-\mathbf{3}}$	$\mathbf{1}.\mathbf{82}\times {\mathbf{10}}^{-\mathbf{2}}$	$\mathbf{1}.\mathbf{64}\times {\mathbf{10}}^{-\mathbf{3}}$	$\mathbf{1}.\mathbf{68}\times {\mathbf{10}}^{-\mathbf{4}}$	$7.61\times {10}^{-1}$	$\mathbf{2}.\mathbf{00}\times {\mathbf{10}}^{-\mathbf{4}}$	$\mathbf{2}.\mathbf{03}\times {\mathbf{10}}^{-\mathbf{4}}$