Suppose that TCP's current estimated values for the round-trip time (estimatedRTT) and deviation in the RTT (DevRTT) are 300 msec and 35 msec, respectively. Suppose that the next three measured values of the RTT are 250 msec, 200 msec, and 330 msec respectively.
Compute TCP's new value of DevRTT, estimatedRTT, and the TCP timeout value after each of these three measured RTT values is obtained. Use the values of α = 0.125, and β = 0.25.
In: Computer Science
In: Computer Science
a)The profession of project management is growing at a very rapid pace. Project management is now being recognized as a valuable “career path” in many organizations, as well as a way to gain valuable experience within the organization. In your accession, why do think companies use project management?
b) Material waste is a topical issue, as there have been many recent publications drawing attention to excessive waste and loss of materials on site. In the past, estimators have been content to add a small percentage (about 5%)to the contract price to cover loss and damage, but now the high cost of materials and competition for work justifies stricter site control. With notes and explanations, put waste into two distinctive categories.
c) Project management is the practice of initiating, planning, executing, controlling, and closing the work of a team to achieve specific goals and meet specific success criteria at the specified time. Then, what are the three primary forces behind project management?
In: Civil Engineering
Please give 10 conditions to be a successful supervisor. Then, select and explain the 5 most important conditions from the 10 conditions. Why the 5 conditions are such important? How to satisfy the conditions?.
In: Operations Management
Case Study on Managing an Investment Portfolio
As a recently hired CFA financial analyst for Horizon Investments you have been asked to make portfolio recommendation and setup an investment policy statement for three clients of the firm.
1) John Lambert has recently received his MBA and currently works for Oracle. He is 26 and recently married. He and hid wife have saved nearly $100,000 for a down payment on a home. He contributes 10% of his salary to a 401K and Oracle provides a 10% match. The investments are made in mutual funds run by Fidelity Investment. The 401K offered by Oracle has access to all of the funds offered by Fidelity. John Lambert needs to have a detailed investment plan set up for his 401K including the name of the funds and percentage of portfolio to be invested in the funds.
2) Elizabeth Yeo, aged 60, is managing director of USX and plans to retire in one year. Yeo will receive a lump sum severance payment of $500,000 from the company and plans to close out her company 401K which is entirely invested in USX stock where she has currently about 35,00 shares. Yeo is widowed and has a son who is married and who has a high-level position at an investment bank. Yeo maintains a money market fund currently value at $1.1 million and earns about 1.2% annually. She has a home, zero mortgage, currently valued at about $1 million and plans to continue living there. She also plans to begin to collect social security at the age of 62. Her living expenses, including maintaining the home, are about $80,000 a year. Her living expenses are expected to grow at an annual rate of 3 percent throughout her retirement period, which is expected to be 25 years given her family’s mortality history. You are requested to prepare an investment policy statement for Yeo and make some investment recommendations.
3) Christopher Maclin, aged 40 is a supervisor at Barnett Co. and earns an annual salary of $100,000. Louise Maclin, aged 38, stays home to care for their newborn twins. She recently inherited $1.3 million (after taxes) in cash from her father’s estate. In addition, the Maclins have $20,000 in cash and $150,000 in Barnett common stock. They are unhappy about portfolio volatility and do not want to suffer a loss of more than 12% in one year. They recently purchased a new home. They need sufficient funds to fund their children’s college education and Christopher plans to retirement at age 65. Christopher is not very knowledgeable about finance but read that small cap and emerging market stocks provide the highest return over the long run. He plans to invest 50% of the inherited money in a small cap fund and the other in an emerging market fund. His wife is concerned about the decision. She requested Horizon review her husband’s decision and, if needed, provide an alternative investment strategy.
In: Finance
Write paragraphs on each question:
1) Gerrymandering: partisan, incumbent, and the Citizen’s Redistricting Commission. How affects political behavior.
2) What is judicial review, and what are some (in)famous examples of Supreme Court rulings?
In: Operations Management
How did the progressive agenda shape presidential politics in the first two decades of the twentieth century?
In: Psychology
Task 1
COCO Co. is a manufacturing company. It manufactures 2 products, known as ‘A’ and ‘Z’. The following information is given for the year 2017: -
The standard direct materials and direct labour used for each product is as follows:
‘A’ ‘Z’
Material 1 10 units 8 units
Material 2 5 units 9 units
Direct Labour 10 hours 15 hours
Standard direct materials and direct labour costs:
Material 1 8.20 per unit
Material 2 17.00 per unit
Direct Labour 14.00 per hour
Other important data is as follows for the year 2017:
Direct material
Material 1 Material 2
Opening inventory (units) 9,000 8,500
Closing inventory required (units) 10,000 2,000
Finished product
‘A’ ‘Z’
Forecast sales (units) 8,500 1,600
Selling price per unit $ 500 $ 660
Ending inventory required (units) 2,000 100
Beginning inventory (units) 200 90
Required:
Prepare the following budgets for the year 2017: -
(a) Sales budget
(b) Production budget
(c) Direct materials usage budget
(d) Direct materials purchase budget
(e) Direct labour budget
In: Accounting
f Nokia decided to embrace the change and move from the old slate (Nokia phones in 2005) to the future slate (smartphones similar to apple and Samsung smartphones in 2020), bearing in mind the lesson learned stated in the last page in the case, propose suitable levers throughout Lewin’s three phases of managing change which in your opinion could have saved Nokia from failure. The levers should cover the four organisational subsystems. (at least 2 levers in each subsystem).
In: Operations Management
Problem 7-19 Interest Rate Risk [LO2]
Both Bond Sam and Bond Dave have 10 percent coupons, make semiannual payments, and are priced at par value. Bond Sam has six years to maturity, whereas Bond Dave has 19 years to maturity.
If interest rates suddenly rise by 2 percent, what is the percentage change in the price of Bond Sam and Bond Dave? (Negative amounts should be indicated by a minus sign. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)
Percentage change in price of Bond Sam
%
Percentage change in price of Bond Dave
%
If rates were to suddenly fall by 2 percent instead, what would be the percentage change in the price of Bond Sam and Bond Dave? (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)
Percentage change in price of Bond Sam
%
Percentage change in price of Bond Dave
%
In: Finance
Please respond to the following questions based upon these course objectives: Analyze the impact of organizational structure including cross-border alliances on international human resource management. Describe the issues surrounding expatriate recruitment, selection, training, and development for international assignments. Describe repatriation activities, practices, and issues. Identify the drivers of globalization and localization. Please answer the following questions with supporting examples and full explanations. For each of the learning objectives, provide an analysis of how the course supported each objective. Explain how the material learned in this course, based upon the objectives, will be applicable to the professional application.
In: Operations Management
What would be the marginal and average tax rates for a corporation with an income level of $85,000? (Do not round intermediate calculations. Enter the marginal tax rate as a whole percent. Enter the average tax rate as a percent rounded to 2 decimal places.)
In: Finance
Write an overloaded procedure using c++ for approximating the value of cos(x), called approx_cos. This procedure should work as follows:
A call such as approx_cos(double x, long N) should produce the Nth order Taylor approximation of the cosine function at the point x. You of course need the derive this Taylor expansion in order to implement it.
A call such as approx_cos(double x) should approximate the value of the cosine function evaluated at the point x, to at least eight digits of accuracy. The Taylor Remainder Theorem helps us understand how to mathematically obtain such a result.
Of course you should write a main() procedure that checks the validity of this procedure and compare it to the true value of cosine at several points (not just x=0).
In: Computer Science
1. There is nothing like the smell of BBQ in the summertime. Many people use propane gas Barbeques to cook the perfect steak. Here is the reaction that is occurring while the steak sizzles on the grill:
C3H8(g) + O2(g) --> CO2(g) + H2O (g)
The balanced reaction has a DHorxn = -2217 kJ. If a steak must absorb 7.2x10-4 kJ to reach a perfect medium rare, and if only 15% of the heat produced by the barbeque is actually absorbed by the steak, what mass of H2O is emitted into the atmosphere when this steak is cooked? (Hint: don’t forget to balance the reaction)
2. A student performed this lab with a marshmallow. He used 50.0 g of water and recorded a temperature of 21°C before heating and 30°C after heating. The marshmallow and fork weighed 21.5 g before heating and 21.1 g after heating. What was the total energy (in J) of the marshmallow? What was the energy per gram of the marshmallow?
In: Chemistry
2. Alice and 10 other users are sending packets using the pure ALOHA protocol. The duration of a packet is 40 msec. Each user sends a packet (including both originals and retransmissions) following a Poisson process with rate 1/400 packets/msec. (a) What is the chance of success on Alice’ first attempt? (hint: the probability that there is no othertransmission within the vulnerable period of Alice’s attempt) (b) What is the probability that Alice gets exactly k collisions and then a success? (hint: consider a Bernoulli trials process) (c) What is the expected number of transmission attempts needed to successfully send a packet?
In: Computer Science