$6-15.$ You are the president of AMT Enterprises. You

have the opportunity to expand your product line to

include a new semi$-$conductor wafer fabrication line. In

order to produce the new wafer, you must invest in a

new production process. In addition to doing nothing,

two mutually exclusive processes are currently available to

produce the wafer. Should you produce this new wafer?

In other words, which, if either, of the alternative processes

should be chosen? Note: IRR for Alternative I $=15\mathrm{.}7\%,$

and IRR for Alternative II $=15\mathrm{.}6\%.$ Assume that the

capital investment for each alternative occurs at year $0$

and that the annual revenues and expenses first occur at

the end of year one. Use the incremental IRR method

to justify your decision. Your company$$s MARR is $15\%.$

$(6\mathrm{.}4\mathrm{.}2)$

NO EXCEL, only to be solved using the equations and formulas manually with procedure shown.