Problem 4 (9 points) Present worth 1800 1600 1400 1200 1000 800 600 200 -50 -40 -3020 -10 10 20 30 40 S0 -200 Percent errot 400 -600 -800 of parameters Given the sensitivity graph above, answer the following questions. a) The analysis is most sensitive to changes in which parameter? b) using A-S1000, MARRs 10% and n 3 years, write the sensitivity equation for changes in MARR. c) If the annual revenues were originally estimated to be (approximately) would cause the investment decision to change? $5000, what value of the annual revenues Problem 4 (9 points) Present worth 1800 1600 1400 1200 1000 800 600 200 -50 -40 -3020 -10 10 20 30 40 S0 -200 Percent errot 400 -600 -800 of parameters Given the sensitivity graph above, answer the following questions. a) The analysis is most sensitive to changes in which parameter? b) using A-S1000, MARRs 10% and n 3 years, write the sensitivity equation for changes in MARR. c) If the annual revenues were originally estimated to be (approximately) would cause the investment decision to change? $5000, what value of the annual revenues