Selecting the Strategic Port of “the Belt and Road” Based on the Global Network

Table 4

Kruskal–Wallis test grouping results.

Variable	Constituencies	Average	Standard deviation	The number of samples	Kruskal–Wallis inspection
					The card square value	value
The number of ports crossed by the shortest path	The first group (superior)	6692.89	1168.27	9	21.49	≤ 0.01
	The second group (general)	2342.31	847.77	39
	The second group (general)	2342.31	847.77	39	85.16	≤ 0.01
	The third group (inferior)	235.10	289.84	107