EOY CF Cumulative CF 900 -1000 1000 -200 -1200 -1200 300 -900 300 -600 -200 -800 100 9. According to Norstrom's criterion (Cumulative Cash Flow Rule of Signs ) for the above CF (a) there are 2 positive roots (b) there is only 1 positive root (0) None of the above 10. According to Descarte's rule of signs the total number of real value i*'s for the above CF is (h) 53 (o) s 2 (d) None of the above 11. For multiple alternatives, If AW(A) > AW(B) > $0, then IRR(A) > IRR(B) > MARR (a) True (b) False