Engineering Economy
16th Edition
ISBN: 9780133582819
Author: Sullivan
Publisher: DGTL BNCOM
expand_more
expand_more
format_list_bulleted
Question
Chapter 11, Problem 15P
To determine
Sensitivity analysis with
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
An industrial machine costing $10,000 will produce net cash
savings of $4,000 per year. The machine has a five-year useful life
but must be returned to the factory for major repairs after three
years of operation. These repairs cost $5,000. The company's
MARR is 10% per year. What IRR will be earned on the purchase
of this machine? Analyze the sensitivity of IRR to ± $2,000
changes in the repair cost.
Perform the sensitivity analysis. Fill-in the table below. (Round to
one decimal place.)
Change in
the repair cost
- $2,000
$0
IRR
21.05%
9.61 %
Is the project
acceptable?
Yes
No
The following data for X and Y are in format [XY]. First cost in $:
[-80,000,-95,000], Annual cost in $: [-20,000, -15,000], Salvage value
in $: [10,000, 30,000], $ Life in years [2,4]. The interest rate is 10% per
year. The equation that will calculate the present worth of
machine X is:
Select one:
a.
b.
O c.
PWX = -80,000 - 20,000(P/A, 10%,2) + 10,000(P/F,10%,2)
PWX = -80,000 - 15,000(P/A, 10%,4) + 30,000[P/F,10%,4)
PWX = -80,000 - 20,000(P/A,10%,4) - 70,000[P/F,10%,2) +
10,000(P/F,10%,4)
O d. PWX = -80,000 - 20,000(P/A, 10%,4) - 80,000(P/F,10%,2) +
10,000 (P/F,10%,4)
To make an item inhouse, equipement costing $245,000 must be purchased. It will
have a life of 4 years, an annual cost of $78,000, and each unit will cost $65 to
manufacture. Buying the item externally will cost $100 per unit. At i = 15% per year,
it is cheaper to make the item inhouse if the number produced per year is above
units.
Chapter 11 Solutions
Engineering Economy
Ch. 11 - Prob. 1PCh. 11 - Refer to Example 11-2. Assuming gasoline costs...Ch. 11 - Prob. 3PCh. 11 - Prob. 4PCh. 11 - Prob. 5PCh. 11 - Prob. 6PCh. 11 - Prob. 7PCh. 11 - Prob. 8PCh. 11 - Prob. 9PCh. 11 - Prob. 10P
Ch. 11 - Prob. 11PCh. 11 - Prob. 12PCh. 11 - Prob. 13PCh. 11 - Prob. 14PCh. 11 - Prob. 15PCh. 11 - You have decided to purchase a new automobile with...Ch. 11 - Prob. 17PCh. 11 - Prob. 18PCh. 11 - Prob. 19PCh. 11 - A bridge is to be constructed now as part of a new...Ch. 11 - An aerodynamic three-wheeled automobile (the Dart)...Ch. 11 - Prob. 23PCh. 11 - Prob. 24SECh. 11 - Prob. 25SECh. 11 - Prob. 26SECh. 11 - Prob. 27SECh. 11 - Prob. 28SECh. 11 - Prob. 29SECh. 11 - Prob. 30FECh. 11 - Prob. 31FECh. 11 - A supermarket chain buys loaves of bread from its...Ch. 11 - A supermarket chain buys loaves of bread from its...Ch. 11 - Prob. 34FECh. 11 - Prob. 35FECh. 11 - Prob. 36FECh. 11 - Prob. 37FECh. 11 - Prob. 38FECh. 11 - Prob. 39FECh. 11 - Prob. 40FECh. 11 - Prob. 41FECh. 11 - Prob. 42FE
Knowledge Booster
Similar questions
- An engineer has recently purchased a new piece of equipmenato use in analyzing geological formations. The equipment has no maintenance costs the first year due to a one year's free maintenance warranty. In the second year, it is expected to cost $20 to maintain the equipment and in subsequent years the cost of maintenance will increase by $20 per year (i.e. maintenance cost is $40 in year three, $60 in year four, and so on). Approximately what amount must be set aside now at 6% interest to pay the cost of maintaining the equipment over the first six years of ownership? $289 $206 $254 $229arrow_forwardA company produces a certain commodity. The labor and material cost for each item produced is P65. Other variable cost is P28 per unit. The fixed monthly cost is P440,000. If each item is to be sold at P170 determine the number of units that must be produced per month in order to break-evenarrow_forwardThe CFO of a consulting engineering firm is deciding between purchasing Ford Explorers and Toyota 4Runners for company principals. The purchase price for the Ford Explorer will be $29,750. Annual maintenance costs for the Explorer are expected to be $525 per year more than that of the 4Runner. The purchase price for Toyota 4Runners is 35,000 The trade-in values after 3 years are estimated to be 50% of the first cost for the Explorer and 60% for the 4Runner. (a) What is the range incremental ROR (i.e. 11% -12%) between the two vehicles? (b) Provided the firm's MARR is 12% per year, which vehicle should it buy? O a. (a) 3% -4% (b) buy the Ford Explorer O b. (a) 14%-15% O c. (a) 16% -17% O d. (a) 15% -16% (b) buy the Toyota 4Runner (b) buy the Toyota 4Runner (b) buy the Ford Explorerarrow_forward
- note: (NN%) = (28%)arrow_forwardSince many U.S. Navy aircraft are at or near their usual retirement age of 30 years, military officials want a precise system to assess when aircraft should be taken out of service. A computational method developed at Carnegie Mellon maps in 3-D the microstructure of aircraft materials in their present state so that engineers can test them under different conditions of moisture, salt, dirt, etc. Military officials can then determine if an aircraft is fine, is in need of overhaul, or should be retired. If the 3-D system allows the Navy to use one airplane 2 years longer than it normally would have been used, thereby delaying the purchase of a $20 million aircraft for 2 years, what is the present worth of the assessment system at an interest rate of 8% per year?arrow_forwardA sheltered workshop requires a lift truck to handle pallets for a new contract. A lift truck can be purchased for Rs.2,70,000. Annual insurance costs are 3% of the purchase price, payable on the first of each year, an equivalent truck can be rented for Rs,15,000 per month payable at the end of each month. Operating costs are same for both the alternatives. For what minimum number of months must a purchased truck be used on the contract to make purchasing more attractive than leasing? Interest rate is 12% compounded monthly. Assume that the purchased truck has no salvage value. Solve using Formulas and draw cash flow diagram.arrow_forward
- A company is considering three pieces of equipment. Equipment A has a first cost of $80,000, AOC of $20,000, and a salvage value of $19,000 after 3 years. Equipment B will cost $210,000 with an AOC of $35,000 and a salvage of $40,000 after 9 years, and Equipment C has the first cost of S150,000 with an AOC of $28,000 and a salvage value of 30,000 after 6 years Which equipment should the company select at an interest rate of 10% per year?arrow_forwardThe CFO of a consulting engineering firm is deciding between purchasing Ford Explorers and Toyota 4Runners for company principals. The purchase price for the Ford Explorer will be $30,750. Annual maintenance costs for the Explorer are expected to be $575 per year more than that of the 4Runner. The purchase price for Toyota 4Runners is 35,250 The trade-in values after 3 years are estimated to be 50% of the first cost for the Explorer and 60% for the 4Runner. (a) What is the incremental ROR between the two vehicles? (b) Provided the firm’s MARR is 15% per year, which vehicle should it buy?arrow_forwardpolarization 5. Handheld fiber-optic meters with white light interferometry are useful for measuring temperature, pressure, and strain in electrically noisy environments. The fixed costs associated with manufacturing are Php40M per year. If a base unit sells for Php180k and its variable cost is Php120k, A. how many units must be sold each year for breakeven and B. what will the profit be for sales of 3000 units per year?arrow_forward
- You have been asked to choose between two office equipment, which will be needed for 12 years of operation. Equipment A will last 6 years, whereas equipment B will last 12 years. Equipment A costs $9500, has annual costs of $1200, and no salvage value, and should be replaced with an identical equipment at the end of its life. Equipment B costs $15,000, has annual costs of $900, and no salvage value. Perform the incremental rate of return analysis and highlight ΔΔIIR in yellow. Assume MARR = 8%. ( Use Excel to solve )arrow_forwardAn engineer has recently purchased a new piece of equipment to use in analyzing geological formations. The equipment has no maintenance costs the first year due to a one year's free maintenance warranty. In the second year, it is expected to cost $20 to maintain the equipment and in subsequent years the cost of maintenance will increase by $20 per year (i.e. maintenance cost is $40 in year three, $60 in year four, and so on). Approximately what amount must be set aside now at 7% interest to pay the cost of maintaining the equipment over the first six years of ownership?arrow_forwardThe Department of Energy is proposing new rules mandating either a 20% increase or a 35% increase in clothes washer efficiency in 3 years. The 20% increase is expected to add $100 to the current price of a washer, while the 35% increase will add $240 to the price. If the cost for energy is $80 per year with the 20% increase in efficiency and $65 per year with the 35% increase, which one of the two proposed standards is more economical on the basis of a future worth analysis at an interest rate of 10% per year? Assume a 15-year life for all washer models.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Economics (12th Edition)EconomicsISBN:9780134078779Author:Karl E. Case, Ray C. Fair, Sharon E. OsterPublisher:PEARSON
Engineering Economy (17th Edition)EconomicsISBN:9780134870069Author:William G. Sullivan, Elin M. Wicks, C. Patrick KoellingPublisher:PEARSON
Principles of Economics (MindTap Course List)EconomicsISBN:9781305585126Author:N. Gregory MankiwPublisher:Cengage Learning
Managerial Economics: A Problem Solving ApproachEconomicsISBN:9781337106665Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike ShorPublisher:Cengage Learning
Managerial Economics & Business Strategy (Mcgraw-...EconomicsISBN:9781259290619Author:Michael Baye, Jeff PrincePublisher:McGraw-Hill Education
Principles of Economics (12th Edition)
Economics
ISBN:9780134078779
Author:Karl E. Case, Ray C. Fair, Sharon E. Oster
Publisher:PEARSON
Engineering Economy (17th Edition)
Economics
ISBN:9780134870069
Author:William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher:PEARSON
Principles of Economics (MindTap Course List)
Economics
ISBN:9781305585126
Author:N. Gregory Mankiw
Publisher:Cengage Learning
Managerial Economics: A Problem Solving Approach
Economics
ISBN:9781337106665
Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
Publisher:Cengage Learning
Managerial Economics & Business Strategy (Mcgraw-...
Economics
ISBN:9781259290619
Author:Michael Baye, Jeff Prince
Publisher:McGraw-Hill Education