3. 8.36 Because of international competition, a company that manufactures high-speed submersible rotary indexing spindles must upgrade its production equipment to reduce costs over a 6-year planning horizon. The company can invest $80,000 one year from now, 2 years from now, or 3 years from now. Depending on when the investment is made, the savings will vary. That is, the savings will be $26,000, $30,000, or $38,000 per year if the investment is made 1, 2, or 3 years from now, respectively. Will the timing of the investment affect the request to make at least 20% per year return? Use future worth analysis and solve using

(a) factors, and

(b) a spreadsheet. 4. 8.37 A machine currently used in manufacturing circuit board card locks has AW = $−62,000 per year. A possible replacement is under