George Caloz & 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 1 2 3 4 5 6 Units 9 6 11 5 7 10 Total Etching Cost $ 27 20 31 20 24 30 48 $ 152 For planning purposes, management would like to know the variable etching cost per unit and the total fixed etching cost per week. 2-a. Using the least-squares regression method, estimate the variable etching cost per unit and the total fixed etching cost per week. 2-5. Express these estimates in the form Y=2-bX. Complete this question by entering your answers in the tabs below. Reg 2A Reg 2B Using the least-squares regression method, estimate the variable etching cost per unit and the total fixed etching cost per week. (Round your answers to 2 decimal places.) Fixed etching cost per week Variable etching cost per unit Red 2A Reg 2B Express these estimates in the form Y = 3 + bx. (Round your answers to 2 decimal places.) Y = 3. If the company processes elght units next week, what would be the expected total etching cost? (Round your intermediate calculations and final answer to 2 decimal places.) Expected total etching cost