$!$

Required information

Exercise $2$A$-5($Algo$)$ Least$-$Squares Regression $[$LO$2-11]$

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:

$\backslash$table$[[,,$Total Etching$],[$Week$,$Units,Cost$],[1,10,$$$27$