The Robb Computer Corporation is trying to choose between the following two mutually exclusive design projects: a-1. If the required return is 11 percent, what is the profitability index for each project? (Do not round intermediate calculations. Round your answers to 3 decimal places, (e.g., 32.161)) a-2. If the company applies the profitability index decision rule, which project should the firm accept? Project I Project II b-1. What is the NPV for each project? (Negative amounts should be indicated by a minus sign. Do not round intermediate calculations. Round your answers to 2 decimal places, (e.g., 32.16))