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Exercise $5$A$-5($Algo$)$ Least$-$Squares Regression $[$L$05-11]$

George Caloz & Fr$$res$,$ 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:

For planning purposes, management would like to know the variable etching cost per unit and the total fixed etching cost

per week.

Exercise $5$A$-5$ Part $3($Algo$)$

If the company processes nine units next week, what would be the expected total etching cost? $($Round your intermediate

calculations and final answer to $2$ decimal places.$)$