Table 5.

Statistical data of the properties of concrete.

Model Validation Constraints	Slump	Compressive Strength	Tensile Strength	Flexural Strength	Modulus of Elasticity	Permeability
Number of Values	17	17	17	17	17	17
Minimum	12	26.22	2.88	4.22	27	8.42
Maximum	58	33	3.55	5.16	32.53	23
Range	46	6.78	0.68	0.94	5.53	14.58
Standard Deviation	0.85	0.56	0.046	0.085	0.043	0.040
Mean	31.00	30.00	3.29	4.75	30.48	14.72
Coefficient of Variance (%)	2.76	1.87	1.39	1.80	0.14	0.27
p-value	0.001	0.0001	0.0001	0.0001	0.0001	0.001
Standard Error	0.43	0.28	0.023	0.043	0.033	0.030
R-Squared	0.9951	0.9438	0.9651	0.9314	0.9994	0.9999
Adj R-Squared	0.9927	0.9158	0.9476	0.8971	0.9984	0.9999
Pred R-Squared	0.9871	0.8351	0.8951	0.8409	0.9464	0.9952
Adeq Precision	69.119	17.038	22.049	15.579	116.844	390.595