rail [Noun] + improve [Adjective]

Strength Strength Dispersion
A:
7
CHISQ:
35.41
AWT:
18,006,263
TTEST:
2.26
G2:
19.1
FAWT:
3.02
MI:
2.79
LOGLOG:
7.83
JD:
0.63
MI3:
8.4
DICE:
0.2
RANGE: