The Sloan Corporation is trying to choose between the following two mutually exclusive design projects: Year WNO Cash Flow (1) -$63,000 28.900 28,900 28,900 Cash Flow (11) -$15,500 7.900 7,900 7,900 a-1. If the required return is 10 percent, what is the profitability index for both projects? (Do not round intermediate calculations and round your answers to 3 decimal places, e.g., 32.161.) Project 1 Project 1 b-1. What is the NPV for both projects? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) Project Project