Management

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E-ZPass

In the 1990s, a task force was formed among executives of seven regional transportation agencies in the New York–New Jersey area.11 The mission of the task force was to investigate the feasibility and desirability of adopting electronic toll collection (ETC) for the interregional roadways of the area. Electronic toll collection is accomplished by providing commuters with small transceivers (tags) that emit a tuned radio signal. Receivers placed at tollbooths are able to receive the radio signal and identify the commuter associated with the particular signal. Commuters establish ETC accounts that are debited for each use of a toll road or facility, thus eliminating the need for the commuter to pay by cash or token. Because the radio signal can be read from a car in motion, ETC can reduce traffic jams at toll plazas by allowing tag holders to pass through at moderate speeds

At the time the New York and New Jersey agencies were studying the service, electronic toll collection was already being used successfully in Texas and Louisiana. Even though several of the agencies had individually considered implementing ETC, they recognized that independent adoption would fall far short of the potential benefits achievable with an integrated interregional system.

The task force was most interested in identifying the ideal configuration of service attributes for each agency’s commuters and determining how similar or different these configurations might be across agencies. The task force identified a lengthy list of attributes that was ultimately culled to six questions:

• How many accounts are necessary and what statements will be received?

• How and where does one pay for E-ZPass?

• What lanes are available for use and how they are controlled?

• Is the tag transferable to other vehicles?

• What is the price of the tag and possible service charge?

• What are other possible uses for the E-ZPass tag (airport parking, gasoline purchases, and so forth)?

From a researcher’s perspective, it also seemed important to assess commuter demand for the service. However, the task force was not convinced that it needed a projection of demand, because it was committed to implementing ETC regardless of initial commuter acceptance. The task force considered its primary role to be investigating commuters’ preferences for how the service should be configured ideally.

Questions

1. Evaluate the problem-definition process. Has the problem been defined adequately so that a relevant decision statement can be written?

2. What type of research design would you recommend for this project?

3. What research questions might be tested?

4. What might a dummy table include in this research proposal?

Economics

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2. The cost per bushel of growing corn on a given acre of land depends partly on how intensely the land is farmed and partly on the quality of the soil, the amount of rainfall, and the length of the growing season. Suppose that the last three factors are summarized by a single index f for fertility. Suppose that the long-run total cost of producing y hundred bushels of corn on an acre of land of fertility f is c(y, f ), where c(y, f ) ? (1 ? y2 )/f for y ? 0 and c(0, f ) ? 0. a. Write down a formula for the long-run average cost function per hundred bushels of corn from an acre of land of quality f. b. At what level of output is long-run average cost minimized on an acre of land of quality f? c. What is the lowest price per hundred bushels at which an acre of land of quality f will be used to produce corn?

Statistics

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The acidity of a chemical solution can be classified as “very high,” “high,” “normal,” “low,” and “very low.” A total of 630 samples of the solution from a production process were obtained, and the acidities were classified as given in DS 10.3.9. (a) Perform a two-sided hypothesis test of the null hypothesis that the probability that a solution has normal acidity is 0.80. (b) It is claimed that the probability that a solution has very high acidity is 0.04, the probability that a solution has high acidity is 0.06, the probability that a solution has normal acidity is 0.80, the probability that a solution has low acidity is 0.06 and the probability that a solution has very low acidity is 0.04. Are the data consistent with this claim?

Accounting

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You are in charge of a large assembly shop that specializes in contract assignments. One of your customers has promised to award you a large contract for the assembly of 1,000 units of a new product. The suggested bid price in the contract is based on an average of 20 hours of direct labor per unit. You conduct a couple of test assemblies and find that, although the first unit took 50 hours, the second unit could be completed in just 40 hours.
a. How many hours do you expect the assembly of the third unit to take? .
b. How many hours do you expect the assembly of the 100th unit to take?
c. Is the contract‘s assumption about the average labor hours per unit valid or should the price be revised?

Computer Science

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You are to design, write, test, and debug a MARIE assembly language program that inputs asequence of characters from the set A-Z (capital letters only), stores each character inmemory after it is transformed by the trivial ROT13 cipher, and then, after character inputcompletes, outputs the transformed characters.A template source code file (Project-2_Start.mas) is provided with this assignment. Edit thisfile to create a program that meets the program specifications. Note that the templateincludes instructions to initialize some working values that your program can use. Thetemplate also defines memory locations. You may add data memory locations. The programcan be designed without additional data locations, but it may be necessary to do so for yourdesign.Requirementsa)The first instruction of the program must be placed at location (address) 0x100 (100hexadecimal) in MARIE’s memory. This is accomplished by following the programtemplate that is provided.b) The constant data values (One, ChA, ChZ, ChPer, Val13, Start) should not bechanged by the program. The program can load from these memory locations, butshould not store to them.c) Transformed input characters must be stored in successive memory locations beginningat location 0x200 (200 hexadecimal) as indicated in the program template. Theprogram should store all transformed input characters before any characters areoutput.d) The program should always initialize the values for Ptr in the working data memoryand not rely on the values for these locations that are defined in the assembly sourcefile. This initialization is done by the provided template file.e) The program should work for any inputs ‘A’ through ‘Z’ and ‘.’ (a period terminatesinput). In the interest of keeping the program simple, the program does not need tovalidate inputs.f) When transformed characters are stored and when transformed characters are output,the program must use a loop and indirect addressing to access the values in the arrayof words. Note that variable Ptr is initialized in the template code and should beused in the loop. You may also define a Count variable to count the number ofcharacters, but there are also correct designs that do not require a Count variable.g) The program should operate as follows.Input Phase:1.A character (A-Z or ‘.’) is input. MarieSim allows the user to input a singlecharacter that is read into the accumulator (AC) with an Input instruction.2. If character ‘.’ (period) is input, then the input phase ends and the outputphase begins (step 5 below). (The period may be stored in memory to mark theend of the characters or the characters can be counted to determine how manytransformed characters to output during the output phase.)3. The character that is input is transformed using the trivial ROT13 cipher (seeSection 5.1).4. The transformed character is stored in the next location in the block ofmemory beginning at location Start. (Variable Ptr must be updated andindirect memory addressing must be used.)Output Phase:5. All transformed characters are output, beginning with the first character thatwas transformed. The ‘.’ character is not to be output. (This will require aloop using variable Ptr and indirect addressing. Note that the number ofcharacters to output will vary and the program must know when to stop theoutput by relying on a ‘.’ or other special character in memory, counting thenumber of input characters during the input phase, or some other method.)6. After all characters are output, the program halts by executing the HALTinstruction.Summary:Input phase– Input a character (‘A’-‘Z’ or ‘.’ only)– Apply the Rotate-13 (ROT13) transformationto the character if ‘A’-‘Z’– Store the transformed character in memory– Repeat until the input is a period (‘.’)• Output phase– Output the stored characters (but not the ‘.’)– The program halts (instruction “Halt”)

Engineering

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You have been asked to prepare a quick estimate of the construction for a coal-fired electricity generating plant and facilities. It is expected that approval, planning and construction will take two years (i.e. the plant should be completed in 2019). A work breakdown structure (WBS) is shown in Table 2 (level one through three). You also have the following information available.
• A coal-fired generating plant twice the size of the one you are estimating was built in 1993. The 1993 boiler (WBS item 1.2) and boiler support system (1.3) cost $190 million. The cost index for boilers was 191 in 1993 (July); it was 745 in 2016 (July); it is expected that inflation will be about 2.8% for the next three years. The 250 hectare site is on property already owned by your client, but improvements (1.1.1) and roads (1.1.2) will cost $1,100 per hectare; and railways (1.1.3) will cost $4,200,000. Project integration (1.9) is projected to cost 3% of all other construction costs.
The security systems are expected to cost $850 per hectare, according to recent (2016) construction of similar plants. All other support facilities and equipment (1.5) are to be built by Duke Engineering. Duke Engineering has built the support facilities and equipment elements for two similar generating plants. Their experience is expected to reduce labour requirements substantially. Duke built the support facilities and equipment on their first job in 95,000 hours, but with an assumed 90% learning rate it is estimated that only 80,400 hours will be required this time. Duke’s labour rate will be billed to you at $90 per hour. Duke estimates that materials for the construction of the support facilities and equipment elements (except (1.5.4) will cost you $21,000,000.
• The coal storage facility (1.4) for the coal-fired generating plant built in 1993 cost $8,600,000. Although your plant is smaller, you require the same size coal storage facility as the 1993 plant. You may assume you can apply the cost index for similar boilers to the coal storage facility.
Estimate the 2017 cost of building the coal-fired generating facility.
Summarise your calculations in a cost estimating spreadsheet.
State all assumptions that you have made, and where these are in addition to those stated above provide a BRIEF reason for them.







Table 2: Work Breakdown Structure for Coal-fired Electricity Generating Plant and Facilities WBS element code Title Coal-fired power plant 1.1 Site Land improvements Roads, parking and paved areas Railroads 1.2 Boiler Furnace 1.2.1 1.2.2 Pressure vessel 1.2.3 Heat exchange system. Generators 1.2.4 1.3 Boiler support system 1.3.1 Coal transport system 1.3.2 Coal pulverising system. 1.3.3 Instrumentation and control 1.34 Ash disposal system Transformers and distribution 1. Coal storage facility Stockpile reclaim system 14.2 Rail car dump 1.21.3 Coal handling equipment 1.5 Support facilities and equipment 1.5.1 Hazardous waste systems 1.5.2 Support equipment 1.5.3 Utilities and communications system 1.5.4 Security systems Project integration Project management 1.9.1 1.9.2 Environmental management Project safety 1.9.3 1.0.4 Quality assurance Test, start-up and transition management 1.9.5

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Finance

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Assume you bought 100 shares of DataPoint for $25 per share, and it is currently selling for $40 per share. Assume the stock evenually declines to $31. Ignore brokerage commissions and margin interest costs.

a. Calculate your percentatge rate of return at the $31 price assuming that you placed a sell stop order at $40 per share and the order executed at that price.

b. Calculate your percentage rate of return at the $31 price assuming you did not place the stop loss order.

c. Calculate your percentage rate of return on your equity investment assuming you bought 100 shares of this stock on 50% margin when it was selling for $25, and you sold the stock for $40 per share.

Science/Math

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1. Sound waves travel approximately 340 m/s through the air and 3200 m/s in copper. a. If a sound wave has a frequency of 232 Hz, what is the wavelength in air? b. What is the period of the wave in air? c. If the wave crosses into a copper medium, what would be the wavelength in copper? (remember frequency does not change when it enters a new medium) 2. In the military, as marching soldiers approach a bridge, the command “route step” is given. The soldiers then walk out-of-step with each other as they cross the bridge. Explain why. (remember “Galloping Gertie” from class) 3. A spring is stretched 12.5 cm from its equilibrium point and experiences a force of 120 N. a. What is the spring constant for the spring? b. What is the PE stored in the spring? 4. A car of mass m rests at the top of a hill of height h before rolling without friction into a crash barrier located at the bottom of the hill. The crash barrier contains a spring with a spring constant, k, which is designed to bring the car to rest with minimum damage. Determine, in terms of m, h, k, and g, the maximum distance, x, that the spring will be compressed when the car hits it. (remember conservation of energy) I need help with my final. I saw you guys sent an email saying I could get 70 percent off ALL my assignments. Thanks!

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find all of the Nash equilibria of the game. (c) Use your results to parts a and b to generalize your analysis to the case in which there are four you ng men and then to the case in which there is some arbitrary number

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12. In the film A Beautiful Mind, John Nash and three of his grad uate school colleagues find themselves faced with a dilemma while at a bar. There are four brunettes and a single blonde available for them to approach. Each young man wants to approach and win the attention of one of the young women. The payoff to each of winning the blonde is 10; the payoff of win­ ning a brunette is 5; the payoff from ending up with no girl is 0. The catch is that, if two or more young men go for the blonde, she rejects all of them and then the brunettes also rejec t the men because they don’t want to be second choice. Thus, each player gets a payoff of 10 only if he is the sole suitor for the blonde. (a) First con ider a simpler situation where there are only two young men, instead of fou r. (There are two brunettes and one blonde, but these women m rel. respond in the manner just described and are not active player in rhe game.) Show the playoff table for the game, and find all of the pu re-strategy Nash equilibria of the game. (bl :”o\’ how the (three-dimensional) table for the case in which there are three young men (and three brunettes and one blonde who are not ac­ [ive players). Again