Use Appendix B for an approximate answer but calculate your final answer using the formula and financial calculator methods. a-1. Calculate the payback period for Project A and Project B. Note: Round your answers to 2 decimal places. a-2. Which of the two projects should be chosen based on the payback method? Project A Project B 1-2. Which of the two projects should be chosen based on the payback method? Project A Project B -1. Calculate the net present value for Project A and Project B. Assume a cost of capital of 8 percent. Note: Do not round intermediate calculations and round your final answers to 2 decimal places. b-2. Which of the two projects should be chosen based on the net present value method? Project B Project A c. Should a firm normally have more confidence in the payback method or the net present value method? Net present value method Payback method