Consider the following cash flow profile and assume MARR is 5%/year.

Note: Please don't use excel functions, just show condensed formulas, ex: (P/F,i(%),n) , etc. Thank you!

EOY	Cash Flow	Cumulative Cash Flow
0	-$100
1	$15
2	$15
3	$15
4	$15
5	$15
6	$15

a. What does Descartes rule of signs tell us about the IRR(s) of this project?

b. What does Norstroms criterion tell us about the IRR(s) of this project? Fill out the 3^rd column of the table to get full credit.

c. Determine the IRR(s) for this project. Is the project economically attractive? Why? Hint: use Solver to find your guesses, because the solution is not what we would normally think.

d. Determine the ERR for this project. Is the project economically attractive? Why?