shown in the following table: . The firm has a cost of capital of 12%. a. Calculate the payback period for the proposed investment. b. Calculate the discounted payback period for the proposed investment. c. Calculate the net present value (NPV) for the proposed investment. d. Calculate the probability index for the proposed investment. e. Calculate the internal rate of return (IRR) for the proposed investment. f. Calculate the modified internal rate of return (MIRR) for the proposed investment. g. Evaluate the acceptability of the proposed investment using NPV, IRR, and MIRR. a. The payback period of the proposed investment is 3.57 years. (Round to two decimal places.) b. Calculate the discounted cash flows for the proposed investment in the following table. (Round to the nearest cent.) Data table (Click on the icon here into a spreadsheet.)