$1.$ Can you rank the projects simply by inspecting the cash flows?

$2.$ What criteria might you use to rank the projects? Which quantitative ranking methods are better? Why?

$3.$ What is the ranking you found by using quantitative methods? Does this ranking differ from the ranking obtained

by simple inspection of the cash flows?

$4.$ What kinds of real investment projects have cash flows similar to those in Exhibit $16\mathrm{.}1?$