Variable

Estimate

Standard error

Z value

P (> | z | )

Intercept

13.1620

3.0532

4.311

1.63e-05***

S

−0.6027

0.1546

−3.899

9.66e-05***

CRT

−0.8706

0.2077

−4.191

2.78e-05***

H

−1.0212

0.3581

−2.851

0.004354**

E

1.5784

0.4118

3.833

0.000126***

X

−1.4836

0.3505

−4.233

2.31e-05***

C

−1.1763

0.4434

−2.653

0.007981**