Table 2

- Differences in cranial capacity between men and women in different groups (cm³).

Age /Sex	n	Mean±SD	CI	Max	Min	T	P-value
A
Male	46	1500.13±117.67	1465.19-1502.45	1776	1251	4.899	0.000006^*
Female	25	1354.32±123.64	1303.28-1405.36	1657	1151
B
Male	64	1541.48±123.09	1510.74-1572.23	1875	1279	12.146	7.0039E-22^*
Female	46	1304.54±81.32	1280.39-1328.70	1479	1163
C
Male	73	1496.12±124.63	1467.04-1525.20	1791	1275	8.062	4.4915E-13*
Female	63	1349.02±86.99	1327.11-1370.93	1526	1151
D
Male	70	1488.13±111.36	1461.57-1514.68	1758	1197	9.283	6.0645E-16^*
Female	58	1310.83±102.77	1283.80-1337.85	1515	1024
E
Male	56	1456.46±113.66	1426.03-1486.90	1780	1232	6.624	1.7779E-9^*
Female	46	1320.93±87.77	1294.87-1347.00	1512	1161

↵* on behalf of 2 samples variance is not neat, using t’ test, CI (95% confidence interval), Max - Maximum of cranial capacity, Min - Minimum of cranial capacity