Optimization of Arabian-Shield-Based Natural Pozzolan and Silica Fume for High-Performance Concrete Using Statistical Design of Experiments

Table 6

Paired t-test for the MSE of RSD predictions of strength and permeability.

Paired-differences			SLF		RSD		-value
Absolute error mean	95% upper bound	Std. Dev.	Mean	Std. Dev.	Mean	Std. Dev.
Compressive strength (MPa)
5.20	−0.704	12.867	13.16	18.43	18.368	20.0	0.030
Chloride permeability (charge passed, coulombs)