Star, Inc. used Excel to run a least-squares regression analysis, which resulted in the following output: Regression Statistics Multiple R R Square Observations 0.9814 0.9576 30 Intercept Production (X) Coefficients 174,182 11.93 What is Star's variable cost per unit? Multiple Choice $0.93 $2.87 $11.93 $12.89 Standard Error 60,782 0.9256 T Stat P-Value 2.87 0.02 12.89 0