Problem 5-51 (algorithmic) 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 $1,592 per year, and the cost of purchasing and installing the fluorescent fixtures is $4,500. The study period is six 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 1 a. The IRR of the investment is [ %(Round to one decimal place ) Enter your answer in the answer box and then click Check Answer Check Answe Clear Al