3. Two advanced thermal insulating and anti-condensation protection alternatives have been proposed for new Antarctica marine vessels subject to the harsh marine environment. One alternative must be selected. Estimated savings from reduced total installation and maintenance costs over conventional insulation are the following: Alternative Installed cost Annual savings Life, years Delta-T Alpha-B $15,000 $6250 $13,000 $4750 8 8 Which alternative should be recommended based on the present worth method? Use a MARR of 18% and a study period of 8 years. Assume zero salvage values. (25 points)