Question 1 Data concerning N Company's activity for the first six months of the year appear below: Machine Hours Electrical Cost 4,000 RM3,120 January February March 6,000 4,460 April May June 4,800 5,800 3,600 3,500 5,040 2,900 3,200 4,200 Required: Using the high-low method of analysis, estimate the variable electrical cost per machine hour