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The independent project estimates below have been developed by the engineering and finance managers. The corporate MARR is 8%% per year, and the capital investment limit is $4 million. Se- lect the economically best projects using the PW method and (a) hand solution and (b) spreadsheet solution. Project NCF, Project Cost, 5 M Life, Years $ per Year -15 360,00D -3.0 10 600,000 -13 520,000 -20 820,GOD Use the PW method to evaluate four independent projects. Select as many as three of the four proj- ects. The MARR is 12% per year, and up to $16,000 in capital investment fiands are available. Project ment, 5 -5000 -8,000 -9,000 - 10,000 cars 5 NOF Estimates, $ per Wear 1000 500 50DO 1700 SODO 2400 500 2000 3000 500 17,00D 3900 10,500\f\f