George Caloz \& Frres, located in Grenchen, Swltzerland, makes luxury custom watches In small lots. One of the company's products, a platinum dlving watch, goes through an etching process. The company has recorded etching costs as follows over the last six weeks: For planning purposes, management would like to know the varlable etching cost per unit and the total fixed etching cost per week. 2-a. Using the least-squares regression method, estimate the varlable etching cost per unit and the total fixed etching cost per week. 2-b. Express these estimates in the form Y=a+bX. 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.) Express these estimates in the form Y=a+bX. (Round your answers to 2 decimal places.) 3. If the company processes thiteen units next week, what would be the expected total etching cost? (Round your Intermedlate calculatlons and final answer to 2 declmal places.) Answer is complete but not entirely correct