Question 2 [10 points] Machines that have the following costs are under consideration for a robotized welding process. Using an interest rate of 10% per year, determine which alternative should be selected on the basis of a present worth analysis. Show (a) hand and (b) spreadsheet solutions. Machine X Machine Y First cost, $ Annual operating cost. S per year Salvage value, $ - 250,000 -430,000 -60.000 - 40,000 70,000 95,000 3 Life, years