An economic evaluation of the following mutually exclusive alternatives is being conducted. Since they have different service lives, repeatability is assumed and an analysis period of 18 years is used. The MARR is 10%. Initial cost Annual revenues Service life (years) Alternative A $30,000 $25,000 6 Alternative B $100,000 $40,000 9 Answer the following two questions: (1) The net AW of Alternative B over the analysis period is (select the closest value) A. $15,614 B. $27,807 C. $22,636 D. $57,364 (2) The net PW of Alternative B over the analysis period is (select the closest value) A. $228,056 B. $185,647 C. $130,361 D. $128,056

! Required information An electric switch manufacturing company is trying to decide between three different assembly methods. Method A has an estimated first cost of $40,000, an annual operating cost (AOC) of $12,000, and a service life of 2 years. Method B will cost $70,000 to buy and will have an AOC of $6,000 over its 4-year service life. Method C costs $125,000 initially with an AOC of $3,500 over its 8-year life. Methods A and B will have no salvage value, but Method C will have equipment worth 7% of its first cost. Perform a present worth analysis to select the method at /= 12% per year. The present worth of method A is $ The present worth of method B is $ The present worth of method C is $ ✓is selected. Method C

Most likely estimates for a project are as follows. MARR Useful life Initial investment Receipts - Expenses (R-E) 10% per year 9 years $5,000 $1,200/year Click the icon to view the relationship between the PW and the percent change in parameter. Click the icon to view the interest and annuity table for discrete compounding when the MARR is 10% per year. (b) To which variable is the PW most sensitive to? OA. Receipts - Expenses OB. Usefule life OC. Initial Investment (a) Determine whether the statement "An initial investment of $6,000 keeps the investment economical." is true or false. O False O True

Three mutually exclusive electric-vehicle battery systems are being investigated by a large automobile manufacturer. Pertinent data are given below: Solve, a. Use the PW method to select the best battery system. The MARR is 15% per year, and the system chosen must provide service for 10 years. Assume repeatability. b. Confirm your recommendation in Part (a) using the IRR method.