Engineering Economy (17th Edition)
17th Edition
ISBN: 9780134870069
Author: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 12, Problem 20P
(a):
To determine
Calculate the variance.
(b):
To determine
Calculate the variance.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Wolfgang is a typical producer in a perfectly
competitive piano industry (i.e., all other producers of
pianos face the same costs as Wolfgang). The
following production and cost data apply to the long run
as well as the short run. Fixed costs (rent) are
unrecoverable in the short run and are equal to $2400
per month. Variable costs consist of raw
materials (wire, wood, plastic), which cost $1000
per piano, and the $40 per hour opportunity cost
of Wolfgang's time. Wolfgang's production function is
given in the table at right.
Wolfgang will shut down if the price per piano is less
than
OA. $3000.
B. $4000.
O C. $5000.
○ D. None of the above.
Pianos (Q)
Hours (L)
Raw Materials (
0
0
0
1
100
1000
2
150
2000
3
240
3000
4
400
4000
P2
P₁
$ per unit
Using the graph below, determine which statement is TRUE.
MC1
SRATC₁
Q1
Q₂
MC2 SRATC2
LRAC
✓ LEA
Quantity
Using the grapns below, wnicn snow the snort-run cost curves for 3 perfectly competitive firms in the same industry, determine whether the industry is in long-run equilibrium or not.
Q
Q
Firm A
QA
MC
ATC
Output
Firm B
QB
MC
ATC
Firm C
MC
ATC
Output
Output
Qc
If Firms A, B and C are in the same industry, is this industry in long-run equilibrium?
○ A. Yes, because P = MC = MR for each of the 3 firms.
○ B. No, because Firm A is not producing at a profit-maximizing level of output.
○ C. Yes, because all 3 firms are producing at their minimum average total cost.
OD. The answer is uncertain since it's unknown whether the firms are producing at the minimum efficient scale or not.
○ E. No, because if the industry were in equilibrium, all 3 firms would be earning zero economic profits.
Chapter 12 Solutions
Engineering Economy (17th Edition)
Ch. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - A new snow making machine utilizes technology that...Ch. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - Prob. 8PCh. 12 - Prob. 9PCh. 12 - Prob. 10P
Ch. 12 - Prob. 11PCh. 12 - Prob. 12PCh. 12 - Prob. 13PCh. 12 - Prob. 14PCh. 12 - Prob. 15PCh. 12 - Prob. 16PCh. 12 - Prob. 17PCh. 12 - Prob. 18PCh. 12 - Prob. 19PCh. 12 - Prob. 20PCh. 12 - Prob. 21PCh. 12 - Prob. 22PCh. 12 - If the interest rate is 8% per year, what decision...Ch. 12 - Prob. 24PCh. 12 - Prob. 25PCh. 12 - Prob. 26SE
Knowledge Booster
Similar questions
- Consider the table on the right, which shows the various revenue concepts for a perfectly competitive firm. Suppose the firm faces a constant market price of $4. Compute first total revenue for each level of output and fill in the TR column of the table. Next, compute marginal revenue for each level of output and fill in the MR column of the table. (Marginal revenue at each level of output is computed using total revenue for two successive levels of output. For example, marginal revenue at 160 uses total revenue for output levels 120 and 160.) Total Marginal Price (p)Quantity (Q) Revenue (TR)Revenue (MR) $4 A EA 120 $4 160 $4 200 $4 240 $4 280 $ EA EA EA 10 S คarrow_forwardThis week we will be discussing measures of economic well-being. Read the following short article from the Office of National Statistics from the U.K. which discusses different measures of economic well-being: https://blog.ons.gov.uk/2017/07/06/beyond-gdp-measuring-the-economic-well-being-of-individuals/ For this assignment, we will narrow down to the economic well-being of the St. Louis region (or another region you choose). As the article indicates there are different measures of well-being. You are interested in creating a Hypothesis Test about the economic well-being of the area. Discuss the following issues: First, think about your research hypothesis and justify it briefly. Remember, a hypothesis is a well-thought and untested proposition. What is the null hypothesis? What is the parameter you are interested in? (i.e., the measure of well-being). Is it going to be a Lower-Tail, Upper-Tail or Two-Tailed test? What is the data that you need and how will you collect the data? What…arrow_forwardJohnny brought $39.50 to the art supply store. He bought a brush, a sketchbook, and a paint set. The brush was 1 6 as much as the sketchbook, and the sketchbook cost 3 4 the cost of the paint set. Johnny had $2.00 left over after buying these items.arrow_forward
- A young woman plans to retire early in 25 years. She believes she can save $10,000 each year starting now. If she plans to begin withdrawing money one year after she makes her last payment into the retirement account (i.e., in the 26th year), what uniform amount could she withdraw each year for 30 years, if the account earns an interest rate of 8% per year? a) Correctly plot the cash flow diagram with its respective vectors, arrowheads, units, and currency values. b) Correct mathematical approach and development, use of compound interest factors.c) Financial logic in the development of the exercise and application of the concept of time value of money. d) Final numerical answer and writing in prose with a minimum of 20 words and a maximum of 50 words of the obtained numerical interpretation.arrow_forwardA hospital charges $200 for a medical procedure, and 1,000 patients use the service. The hospital raises the price to $250, and the number of patients drops to 900. Calculate the price elasticity of demand (PED) and explain your answer. (show all working) Briefly explain how elasticity affects government health policies in the following cases: • Taxes on unhealthy products (cigarettes, alcohol, sugary drinks) • Subsidizing Preventive Care (e.g., vaccines, screenings) Drug Price Controls & Generic Substitutions Co-Payments & Insurance Designarrow_forwardAssume the United States is a large consumer of steel, able to influence the world price. DUS and SUS denote its demand and supply schedules in Figure 1. The overall (United States plus world) supply schedule of steel is denoted by SUS.+W. Figure 1 Import Tariff Levied by a Large Country Answer all questions (a-f) by referring to Figure 1 above. a) Calculate the free trade market equilibrium price, domestic consumption, and volumE Answer all questions (a-f) by referring to Figure 1 above. a) Calculate the free trade market equilibrium price, domestic consumption, and volume of steel imports by the US. [5 marks] b) Suppose the United States imposes a tariff (t) of $100 on each ton of steel imported. With the tariff, calculate the price of steel and the volume of steel imports by the US. [5 marks] c) Of the $100 tariff, how much is passed on to the US consumer via a higher price, and how much is borne by the foreign exporter? [5 marks] d) Calculate the tariff's deadweight welfare loss to…arrow_forward
- 1. A doctor quits his job, which pays $77,000 per annum, to open a non-governmental organization (NGO) to serve the needs of orphans. His annual expenses for the NGO amounts to $62,700 for food and daily supplies, $9,400 for maintenance, and $1,800 for books. What is his opportunity cost of opening the NGO? (Show working) 2. During the COVID-19 pandemic, hospitals worldwide faced severe resource constraints, including: a. Limited ICU beds b. Shortage of ventilators c. Insufficient doctors and nurses d. Lack of vaccines in early 2021 Governments and hospitals had to make critical decisions about who receives treatment first and how to allocate limited resources efficiently. In no more than 150 words and using core economic concepts of scarcity, choice and opportunity cost, how would you help your government make these critical decisions?arrow_forwardWhat is the argument about necessary evil?arrow_forwardWhat are the consequences of declining houses prices?arrow_forward
- Q1 Explain what economic catch 22 is. Q2 What are the consequences of declining houses pricing? Q3 What is the argument about necessary evil? Q4 Explain the idea of irrational exhuberance? Q5 Explain what was the economic paradox?arrow_forward< Files 9:10 Fri Mar 21 Chapter+11-Public+Goods+and+Common+Res... The Economic Catch-22 By Robert J. Samuelson We are now in the "blame phase" of the economic cycle. As the housing slump deepens and financial markets swing erratically, we've embarked on the usual search for culprits. Who got us into this mess? Our investigations will doubtlessly reveal, as they already have, much wishful thinking and miscalculation. They will also find incompetence, predatory behavior and probably some criminality. But let me suggest that, though inevitable and necessary, this exercise is also simplistic and deceptive. -- business It assumes that, absent mistakes and misdeeds, we might remain in a permanent paradise of powerful income and wealth growth. The reality, I think, is that the economy follows its own Catch-22: By taking prosperity for granted, people perversely subvert prosperity. The more we managers, investors, consumers - think that economic growth is guaranteed and that risk and…arrow_forward2.) Using the line drawing tool, plot and label the isocost line. Carefully follow the instructions above, and only draw the required objects. FILL IN BLANK d. Now suppose the price of labour rises to $5 per unit, but the firm still wants to produce 500 tires per day. Explain how a cost-minimizing firm adjusts to this change (with no change in technology). A cost-minimizing firm will be producing on ▼ The samedifferently slopedparallel isocost line. The firm will use ▼ moresameless labour and ▼ less the same amount of more capital and produce on ▼ a higher point on the same a lower point on the same a lower a higher isoquant curve.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Managerial Economics: Applications, Strategies an...EconomicsISBN:9781305506381Author:James R. McGuigan, R. Charles Moyer, Frederick H.deB. HarrisPublisher:Cengage Learning
Managerial Economics: A Problem Solving ApproachEconomicsISBN:9781337106665Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike ShorPublisher:Cengage Learning
Managerial Economics: Applications, Strategies an...
Economics
ISBN:9781305506381
Author:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
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