Someone has run a regression. Response variable is the monthly electricity cost of a factory. Regression output is given below: Coefficients Standard Error t Stat P-value Intercept 14,039.2 12,680.3 1.11 0.300 Av. Temp F 92.8 28.4 3.27 0.011 Work Days 446.1 713.8 0.63 0.549 Tons Produced -27.0 108.9 -0.25 0.810 R2 0.67 Adjusted R2 0.54 Standard Error, se 1,644.26 F Statistic (p-value) 5.31, (0.026) Observations 12 Use the output to find the value that answers the following question: The predicted change in monthly electricity cost associated with one more work day holding av. temp F and tons produced constant