Assume that a company is choosing between two alternatives$-$keep an existing machine or replace it with a new machine. The costs associated with the two alternatives are summarized as follows:

$\backslash$table$[[,$Existing,$],[,$Machine,New Machine$],[$Purchase cost $($new$),$$$15,000,$$$22,000$

multiple choice:

$$(68359)$

$$(47359)$

$$53359)$

$$(51359)$