8) The Rockford Company used regression analysis to predict the annual cost of utilities. The results were as follows: Utilities Cost Explained by Direct Labor Hours Constant 2,500 Standard error of Y estimate 595 R-Squared 0.8650 No. of observations 30 28 Degrees of freedom X Coefficient 2.037 0.917 Standard error of coefficient The total fixed cost is A) $2,500 C) $2.037 B) $595 D) none of the above 9) Moonlight Motel's cost function is given as: 50,000 + 7.50 x 75,000 C000+ $7.50X