Table 9: Statistical approach to select the RSM model with gas price of $5/MSCF.

SourceStd. Dev. -SquaredAdjusted -SquaredPredicted -SquaredPress

Linear0.260.89850.87880.83683.37
2FI0.250.95250.89010.321314.01
Quadratic0.0710.99750.99080.87122.66Suggested
Cubic011Aliased