MONTH January February March April May June July August September October ACTIVITY COST 450 16,250 700 18,600 750 19,200 525 16,750 800 20,000 675 18,000 650 17,500 400 16,000 425 16,025 600 17,475 1. Using the High-Low method, what is the estimate of fixed costs? 2. The results of a least squares regression are as follows: Intercept: Slope: Coefficient of correlation Standard error $2,250 1.84 .86 640 What is the predictive model (the cost formula)? Use the following data to answer the next two (2) problems MONTH January February March April May June July August September October ACTIVITY COST 450 16,250 700 18,600 750 19,200 525 16,750 800 20,000 675 18,000 650 17,500 400 16,000 425 16,025 600 17,475 3. Using the Semi-Averages method, what is the estimate of fixed costs