Required information George Caoz&Frres, located in Grenchen, Switzerland, makes luxury custom watches in small lots. One of the company's products, a platinum diving watch, goes through an etching process. The company has recorded etching costs as follows over the last six weeks: Week Units Total Etching Cost 18 $ 17 $ 25 s 20 $ 24 $ 16 $120 4 30 For planning purposes, management would like to know the variable etching cost per unit and the total fixed etching cost per week. Required 1. Prepare a scattergraph plot. (Plot etching costs on the vertical axis and units on the horizontal axis.)