Robben Manufacturing has the following two possible projects. The required return is 11 percent. Year ProjectY Project Z 0 28,100 61,000 16,500 32,000 14,500 30,000 14,100 12,500 14,900 10,500 a. What is the profitability index for each project? (Do not round intermediate calculations and round your answers to 3 decimal places, e.g., 32.161.) Profitability index Project Y Project Z b. What is the NPV for each project? (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) NPV Project Y Project Z c. Which, if either, of the projects should the company accept? (Click to select)