Machine-hours Kilowatt-hours Total Overhead CostsJanuary 3800 4520000 $138000February 3650 4340000 136800March 3900 4500000 139200April 3300 4290000 136800May 3250 4200000 126000June 3100 4120000 120000Question 1: Use the high-low method to determine the estimating cost function with machine-hours as the cost driver.Question 2: Use the high-low method to determine the estimating cost function with kilowatt-hours as the cost driver.Question
3: For July the company ran the machines for 3000 hours and used
4000000 kilowatt-hours of power. The overhead costs totaled $114000.
Which cost driver was the best predictor for July?