requirea iniormaion Exercise 6A-4 High-Low Method: Scattergraph Analysis [L06-10] The following information applies to the questions displayed below) Archer Company is a wholesaler of custom-built air-conditioning units for commercial buildings. It gathered the following monthly data relating to units shipped and total shipping expense: of 3 Units, Total Shipping MonthShippedExpense s 2,408 $ 2,900 $ 2,300 $ 2,600 s 2,900 $ 3,900 s 1,800 January February Manch April May June uly Exercise 6A-4 Part 2 2. Using the high-low method, estimate the cost formula for shipping expense. Variable shipping expense Fixed shipping expense per unit per month