Required information Exercise 6A-4 High-Low Method; Scattergraph Analysis [LO6-10] [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 Units Total Shipping Month Shipped. Expense January 3 $ 1,800 February 6 $ 2,300 March 4 $1,700 April 5 $ 2,000 May 7 $ 2,300 June July $2,700 $1,200