Variable

Estimate

Std. Error

t-value

Pr (>|t|)

C

0.587542

0.062978

9.329386

0.0000

X1^2*WGT^2

0.054024

0.033835

1.596676

0.1166

X1*X2*WGT^2

−0.071383

0.034349

−2.078160

0.0428

X1*X3*WGT^2

0.053695

0.027579

1.946919

0.0572

X1*X4*WGT^2

0.041006

0.026167

1.567110

0.1234

X1*X6*WGT^2

−0.007149

0.006180

−1.156815

0.2528

X1*WGT^2

−0.605869

1.074304

−0.563964

0.5753

X2^2*WGT^2

0.023984

0.009906

2.421245

0.0191

X2*X3*WGT^2

−0.021224

0.019723

−1.076128

0.2870

X2*X4*WGT^2

−0.027118

0.022346

−1.213571

0.2306

X2*X6*WGT^2

0.003000

0.003723

0.805850

0.4241

X2*WGT^2

0.281665

0.727778

0.387020

0.7004

X3^2*WGT^2

−0.028712

0.026035

−1.102822

0.2754

X3*X4*WGT^2

−0.001905

0.039959

−0.047677

0.9622

X3*X6*WGT^2

−0.001783

0.004228

−0.421783

0.6750

X3*WGT^2

0.868533

1.301637

0.667262

0.5077

X4^2*WGT^2

0.009955

0.014598

0.681920

0.4984

X4*X6*WGT^2

0.004948

0.003697

1.338402

0.1868

X4*WGT^2

−0.669746

1.103309

−0.607034

0.5466

X6^2*WGT^2

−2.88E−05

0.000710

−0.040598

0.9678

X6*WGT^2

−0.070195

0.120809

−0.581040

0.5638

WGT^2

5.840271

15.81518

0.369283

0.7135

R-squared

0.388648

Mean dependent var

0.581352

Adjusted R-squared

0.131880

S.D. dependent var

0.429371

S.E. of regression

0.400057

Akaike info criterion

1.252050

Sum squared resid

8.002295

Schwarz criterion

1.947698

Log likelihood

−23.07381

Hannan-Quinn criter.

1.528990

F-statistic

1.513616

Durbin-Watson stat

1.451958

Prob (F-statistic)

0.115545