Consider the Think$-$Big Development Co$.$ problem presented in

Section $3\mathrm{.}2(7$e: Section $6\mathrm{.}2),$ including the spreadsheet in Figure

$3\mathrm{.}3$ showing its formulation and optimal solution. In parts a$-$g$,$ use

the spreadsheet and Solver to check whether the optimal solution

would change and, if so$,$ what the new optimal solution would be$,$

if the estimates in Table $3\mathrm{.}3(7$e: Table $6\mathrm{.}3)$ of the net present

values of the projects were to be changed in each of the following

ways.