Moisture Stability of Hard Sandstone Asphalt Mixture Based on APT with MMLS3

Table 9

t-test for the bulk specific densities of two types of core specimens.

t-test: paired two sample for means
Sample	Sample 1	Sample 2
Mean	2.356	2.3314
Variance	0.0001633	3.628×10^−05
Observations	9	9
Pearson correlation coefficient	0.04765
Hypothesized mean difference	0
df	8
t Stat	5.242
P (T ≤ t) one-tailed	0.0003909
t critical one-tailed	1.860
P (T ≤ t) two-tailed	0.0007818
t critical two-tailed	2.306