ABC Company has collected the following data on that cost of electricity use and direct labor worked for the past six months: Month Cost of Electricity Direct Labor Hours July JD15600 3000 August 13400 2050 September 16900 2800 October 18500 3750 November 17300 2620 December 18200 2590 total 100400 16710 Average 16860 2802 Required: A- Use the high- low method to estimate the cost behavior in a formula similar to one used by least squares regression method. B- Predict the cost of electricity for ABC company for the month of January if the direct labor hours are expected to be: (1)3000 hours (2)5000 hours C- Which of the above prediction in B (1 or 2) is more accurate and why?