Variable | Parameter Estimate | Heteroscedasticity Consistent | ||
Standard Error | t Value | Prob. > |t| | ||
Intercept | $30,015.41 | $3635.03 | 8.26 | <0.0001 |
Density | $0.00258 | $0.00027 | 9.49 | <0.0001 |
T | $2216.44 | $161.56 | 13.73 | <0.0001 |
ATSF | $1720.58 | $10,938.65 | 0.16 | 0.8752 |
BN | ($34,199.11) | $4841.11 | −7.06 | <0.0001 |
BNSF | $13,747.87 | $5599.19 | 2.46 | 0.0147 |
CNW | ($5241.90) | $4747.29 | −1.10 | 0.2705 |
SP | $36,245.29 | $5734.65 | 6.32 | <0.0001 |
UP | ($14,017.55) | $3361.63 | −4.17 | <0.0001 |
UP-CNW | $19,361.97 | $4166.30 | 4.65 | <0.0001 |
UP-SP | ($23,783.66) | $5946.54 | −4.00 | <0.0001 |
CR | $37,732.86 | $9703.98 | 3.89 | 0.0001 |
CSX | ($10,486.91) | $6136.06 | −1.71 | 0.0886 |
CSX-CR | $23,520.82 | $5571.85 | 4.22 | <0.0001 |
GTW | ($117,880.62) | $4732.37 | −24.91 | <0.0001 |
GTC | $90,775.10 | $3567.30 | 25.45 | <0.0001 |
ICG | ($77,296.90) | $4370.11 | −17.69 | <0.0001 |
NS | $16,218.45 | $6465.38 | 2.51 | 0.0127 |
NS-CR | $8801.12 | $5706.07 | 1.54 | 0.1242 |
SOO | ($31,376.22) | $2243.78 | −13.98 | <.0001 |