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	Delta-T	Alpha-B
Installed cost	$13,000	$15,000
Annual savings	$4750	$6250
Life, years	8	8

Which alternative should be recommended based on the present worth method? Use a MARR of 18 percent and a study period of 8 years. Assume negligible salvage values. please use excel if possible