Research on the Relationship between Construction 4.0 and Construction Firm’s Performance: Based on the Mediating Role of Technological Innovation Capability

Table 3

Descriptive statistics.

Variable	N	Mean	Median	Standard deviation	Min	Max
ROE	168	8.649	8.925	4.615	−4.260	26.40
C4	168	0.031	0.019	0.035	0	0.194
Inf	168	0.000	−0.158	0.734	−1.004	3.759
Age	168	2.995	3.091	0.347	1.946	3.664
Lev	168	74.126	76.935	11.547	41.28	92.22
Cme	168	38.98	33.92	47.49	2.539	606.4
Ttc	168	0.559	0.527	0.223	0.177	1.222