The following data relating to units shipped and total shipping expense have been assembled by Archer Company, a manufacturer of large, custom-built air-conditioning units for commercial buildings: Total Month January Units Shipping Shipped Expense $4,310 February 6 3,220 March 7 3,540 April 4 2,330 May 6 2,970 June 16. July 7,320 1,860 Required: 1. Estimate a cost formula for shipping expense using the high-low method. Y- 2. This part of the question is not part of your Connect assignment. 3. What factors, other than the number of units shipped, are likely to affect the company's total shipping expense? (You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer. Any boxes left with a question mark will be automatically graded as incorrect.) Weight of the units shipped 7 Distance travelled