Egyptian Journal of Forensic Sciences

Table 3 Statistical test results of t test (t) and Wilcoxon’s rank sum test (W)

From: Preliminary study on morphometric analysis of the human scalp hair for discrimination of ethnic Malay and ethnic Chinese in Malaysia

(a) Inter-head regions
Parameter	Test	Malays		Chinese
		Male	Female	Male	Female
HW	t	0.51	0.40	0.87	0.73
	W	0.44	0.33	0.84	0.79
SLD	t	0.94	0.05*	0.31	0.62
	W	0.89	0.04*	0.24	0.61
MI	t	0.13	0.81	0.01*	0.36
	W	0.22	0.96	0.01*	0.33
(b) Inter-sex
Ethnicity	HW		SLD		MI
	t	W	t	W	t	W
Malays	0.97	0.84	< 0.001*	< 0.001*	0.07	0.34
Chinese	0.43	0.55	0.40	0.53	< 0.001*	< 0.001*
(c) Inter-ethnic
Test	HW		SLD		MI
t test	3.85 × 10⁻¹¹*		1.27 × 10⁻⁸⁴*		1.71 × 10⁻²⁵*
Wilcoxon’s test	9.16 × 10⁻¹²*		1.43 × 10⁻⁷⁵*		1.38 × 10⁻¹⁶*

HW hair width, SLD scale layer difference, MI medullary index
*p value less than or equal to 0.05

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