Q4An engineer wants to investigate the effect of operating temperature to polyethylene (PE)material reliability (in terms of Derating Factor, the higher the better, maximum value is1.00) to be used for outdoor piping systems. Data are gathered as in Table Q4.Table Q4(a)(b)(c)Experimentno.123(d)45678910101010Given Σ 4 = 23801, Σ Β = 4.84, ΣΑΒ; = 237.4i=1i=1i=1Operating temperature (°C), A Derating Factor, B21273238434954606671Determine Sxx Syy, and Sxy.Determine the slope and intercept for the regression line using values calcriatedfrom Q4(a).Determine the estimated regression line equation.1.000.900.900.800.800.700.500.400.200.00Calculate the coefficient of Pearson correlation.

Given ∑110A2i=23801, ∑110Bi2=4.84, ∑110AiBi=237.4 Note: “Since you have posted a question with…

Q4 An engineer wants to investigate the effect of operating temperature to polyethylene (PE) material reliability (in terms of Derating Factor, the higher the better, maximum value is 1.00) to be used for outdoor piping systems. Data are gathered as in Table Q4. Table Q4 (a) (b) Experiment no. 1 2 3 4 5 (c) 6 7 8 9 10 10 10 10 Given Σ A = 23801, Σ Β = 4.84, ΣΑΒ = 237.4 = i=1 Operating temperature (°C), A Derating Factor, B 21 27 32 38 43 49 54 60 66 71 Determine Sxx Syy, and Sxy. 1.00 0.90 0.90 0.80 0.80 0.70 0.50 0.40 0.20 0.00 Determine the slope and intercept for the regression line using values calcriated from Q4(a). Determine the estimated regression line equation.

Q4 An engineer wants to investigate the effect of operating temperature to polyethylene (PE) material reliability (in terms of Derating Factor, the higher the better, maximum value is 1.00) to be used for outdoor piping systems. Data are gathered as in Table Q4. Table Q4 (a) (b) Experiment no. 1 2 3 4 5 (c) 6 7 8 9 10 10 10 10 Given Σ A = 23801, Σ Β = 4.84, ΣΑΒ = 237.4 = i=1 Operating temperature (°C), A Derating Factor, B 21 27 32 38 43 49 54 60 66 71 Determine Sxx Syy, and Sxy. 1.00 0.90 0.90 0.80 0.80 0.70 0.50 0.40 0.20 0.00 Determine the slope and intercept for the regression line using values calcriated from Q4(a). Determine the estimated regression line equation.

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

See similar textbooks

Similar questions

Mid-Valley Industrial Extension Service, a state-sponsoredagency, provides water quality sampling services toall business and industrial firms in a 10-county region.Last month, the service purchased all necessary lab equipmentfor full in-house testing and analysis. Now, an outsourcingcompany has offered to take over this function ona per-sample basis. Data and quotes for the two optionshave been collected. The MARR for government projectsis 5% per year and a study period of 8 years is chosen.In-house: Equipment and supplies initially cost$125,000 for a life of 8 years, an AOCof $15,000, and annual salaries of$175,000. Sample costs average $25.There is no significant salvage valuefor the equipment and supplies currentlyowned.Outsourced: Cost averages $100 per sample for thefirst 5 years, increasing to $125 persample for years 6 through 8. Use a spreadsheet to graph the AW curves for both options for test loads between 0 and 5000 per year in increments of 1000 tests. What is the…
The most possible values of an investment project are as follows: First cost, $ 300,000 Annual operating cost, $ 10,000 Annual benefit, $ 120,000 Salvage value, $ 80,000 Life, year 30 MARR per year 15% The most uncertain parameters are annual operating cost and annual benefit. Perform a multiparameter sensitivity analysis and write your conclusions
Consider two air-conditioning systems with the estimates below. (a) Use AW analysis to determine the sensitivity of the economic decision to MARR values of 4%, 6%, and 8% per year. (b) Develop the spreadsheet functions that will display the six AW values. System 1 2 First cost, $ −10,000 −17,000 AOC, $ per year −600 −150 Salvage value, $ −100 −300 New compressor and motor cost at midlife, $ −1,750 −3,000 Life, years 8 12
Ken Allen, capital budgeting analyst for Bally Gears, Inc., has been asked to evaluate a proposal. The manager of the automotive division believes that replacing therobotics used on the heavy truck gear line will produce total benefits of $516,000 (in today's dollars) over the next 5 years. The existing robotics would produce benefits of $387,000 (also in today's dollars) over that same timeperiod. An initial cash investment of $206,400 would be required to install the new equipment. The manager estimates that the existing robotics can be sold for $72,000. Show how Ken will apply marginal cost-benefit analysistechniques to determine the following:a. The marginal benefits of the proposed new robotics.b. The marginal cost of the proposed new roboticsc. The net benefit of the proposed new robotics.
In connection with surfacing a new highway, a contractor has a choice of two sites on which to set up the asphalt-mixing plant equipment. The contractor estimates that it will cost $1.25 per cubic yard mile (yd3 –mile) to haul the asphalt-paving material from the mixing plant to the job location. Factors relating to the two mixing sites are as follows: (See pic) The job requires 50,000 cubic yards of mixed-asphalt-paving material. It is estimated that four months (17 weeks of five working days per week) will be required for the job. Compare the two sites in terms of their total costs. Assume that the cost of the return trip is negligible. A) Which is the better site? B) For the selected site, how many cubic yards of paving material does the contractor have to deliver before staring to make a profit if paid $8.35 per cubic yard delivered to the job location?
WHICH IS MORE ECONOMICAL? USE METHOD OF COMPARISON OF ALTERNATIVES! In a cold storage plant, it is desired to determine whether to use insulation two inches thick or three inches thick in insulating the walls of the cold storage ware house. Heat absorb through the walls without insulation would cost P96.00 per year per squaremeter. A two-inch insulation will cost P30.40 per square meter and will cut out 89% of the loss. A three-inch insulation will cut out 92% of the loss and will cost P65.00 per square meter. Using a life 15 years for the insulation with no salvage value and a minimum attractive return of 8%, what thickness of insulation should be used?
In most engineering economy studies, the best alternative is the one which:a. Will last the longest timeb. Is the easiest to implementc. Costs the leastd. Is the most politically correct
Please show both and irr using trial and error method only pls. Thanks.
Allina opens an exotic bakery. Her capacity for the month is eight hundred (800) Love Cherry Short cakes. On average, in a month, she pays a fixed amount for water, electricity, security and a loan of TTD100.00, TTD1,200.00, TTD2,700.00 and TTD4,000.00 respectively. In addition, she estimates that TTD50.00 more must be paid for each Love Cherry Short cake she makes and sells. If she sells one Love Cherry Short cake for TTD90.00. Identify and clearly state all variables used. Determine the following: Allina’s total cost and revenue functions. From part a) state the domain and range the total cost and revenue functions. Allina’s total cost when she produces and sells one thousand Love Cherry Short cakes. The value of the rational function of total cost and total revenue when no Love Cherry Short cakes are made and sold. Answer the following based on the problem set above. a. write a short reflective piece (NO MORE THAN 50 words per Problem Set…
A drug store is looking into the possibility of installing a 24/7-automated prescription refill system to increase its projected revenues by $20,000 per year over the next 5 years. Annual expenses to maintain the system are expected to be $5,000. The system will cost $50,000 and will have no market value at the end of the 5-year study period. The store’s MARR is 20% per year. Use the AW method to evaluate this investment.
Bob and Mary Johnson are expecting their first child.They have decided to deposit $1000 into a savings account that pays 6% interest compounded annually on the day the child is born. They will then deposit $1000 on each birthday through the child’s 18th birthday. How much money will be in the account on the child’s 19th birthday to finance a college education? (Answer must be: $35,786) Solutions manual only with formula, without using Microsoft Excel.
1. Breakeven Analysis An aerodynamic three-wheeled automobile (the Dart) runs on compressed naturalgas stored in two cylinders in the rear of the vehicle. The $13,000 Dart can cruise at speeds up to 80 miles per hour, and it can travel 100 miles per gallon of fuel. Another two-seater automobile costs $10,000 and averages 50 miles per gallon of compressed natural gas. If fuel costs $8.00 per gallon and MARR is 10% and 15%per year, over what range of annual miles driven is the Dart more economical? Assume a useful life of five years for both cars.2. Sensitivity Analysis We know the standard means of cutting the high cost of driving our automobiles—slow down your speed, no jack rabbit starts, inflate tires properly, clean air filters regularly, and so on. Another way to reduce the cost of driving is to join every bigrigger in the United States and half of Europe-go diesel. Diesels are inherently more efficient than gasoline engines because they deliver a third better fuel mileage. They…