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Required information 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 Units Total Etching cost 13 $ 24 21 31 25 31 32 $164 1 2 3 4 5 11 16 15 18 18 91 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-b. Express these estimates in the form Y = a +bX. 2-a. Using the least-squares regression method, estimate the variable etching cost per unit and the total fixed etching cost per week. 2-b. Express these estimates in the form Y =a + bx Complete this question by entering your answers in the tabs below. Req 2A Reg 28 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 ROD 2 Req 2B> 2-a. Using the least-squares regression method, estimate the variable etching cost per unit and the total fixed etching cost per week. 2-6. Express these estimates in the form Y=3 + bx. Complete this question by entering your answers in the tabs below. Req 2A Reg 28 Express these estimates in the form Y = a + bx. (Round your answers to 2 decimal places.)