Please answer showing work in detail.

The Michner Corporation is trying to choose between the following two mutually exclusive design projects: a-1. If the required return is 12 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.) a- If the company applies the profitability index decision rule, which project should the 2. firm accept? Project I Project II b- What is the NPV for both projects? (A negative answer should be indicated by a 1. minus sign. Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) b- 2. If the company applies the NPV decision rule, which project should it take? Project I Project