Secure https://www.mathxl.com/Studen Ida 402936071&questionlda4&tflushed false&cld 4244243¢erw t/PlayerHomework.aspx?homework SP17 ESC 282 Engineering Economy Sect. 50 Save Homework: Chapter 5 Homework Score: 0 of 3 pts HW Score: 31.67%, 12.67 of 40 pts 11 of 13 (9 complete) v (x Problem 5-51 (algorithmic) la Question Help A computer call center is going to replace all of its incandescent lamps with more energy efficient fluorescent lighting fixtures. The total energy savings are estimated to be $1,683 per year, and the cost of purchasing and installing the fluorescent fixtures is $5,500. The study period is seven years, and terminal market values for the fixtures are negligible. a. What is the IRR of this investment? b. What is the simple payback period of the investment? c. is there a confict in the answers to Parts (a) and (b)? List your assumptions. d. The simple payback "rate of return" is 110. a. The IRR of the investment is (Round to one decimal place)