Problem 12-19 (Algo) Use of profitability index [LO12-4] You are asked to evaluate the following two projects for the Norton corporation. Use a discount rate of 11 percent. Use Appendix B for an approximate answer but calculate your final answer using the formula and financial calculator methods. a. Calculate the profitability index for project X. Note: Do not round intermediate calculations and round your answer to 2 decimal places. b. Calculate the profitability index for project Y. Note: Do not round intermediate calculations and round your answer to 2 decimal places