Assignment #5

1. In Assignment 4, you described an ecological community close to your home. For this assignment, describe the ecosystem that contains your chosen community. What are the major processes that determine how this ecosystem functions? (5 marks)
2. Climate, primary productivity and decomposition rates all interact in ecosystems. Explain how each one of these factors influences the other two (12 marks)
3. Explain the impacts that human activities have on one gaseous and one sedimentary biogeochemical cycle. Be specific about both the activities and the impacts. (8 marks)
4. One common approach to conservation involves trying to “save” a particular endangered species. Discuss the advantages and disadvantages of this kind of approach, as opposed to the approach of conserving ecosystems and landscapes. (10 marks)

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This week addresses many topics, from continuously distributed variables to statistical sampling plans and confidence interval construction. The questions that follow test your understanding of the statistical concepts introduced this week.

Select any one of the following starter bullet point sections. Review the important themes within the sub questions of each bullet point. The sub questions are designed to get you thinking about some of the important issues. Your response should provide a succinct synthesis of the key themes in a way that articulates a clear point, position, or conclusion supported by research. Select a different bullet point section than what your classmates have already posted so that we can engage several discussions on relevant topics. If all of the bullet points have been addressed, then you may begin to re-use the bullet points with the expectation that varied responses continue.

• You are designing a direct marketing campaign for an online clothing retailer. As part of your design, you quantify the expected response rates by ethnic group. Your definition of the term “ethnicity” follows that of the U.S. Census Bureau (e.g., Hispanic, Asian, African American, etc.). You want to test your campaign using 1,000 randomly selected households, but you want your sample to mimic the US population in terms of the proportion of different ethnicities (e.g., if Hispanics constitute about 12 percent of the US population, 12 percent of your sample should be Hispanic).
  • Assess the appropriateness of using a simple random sample as the test’s sampling plan.
  • Evaluate other potential sampling plans, and describe why such other sampling plans might be more or less appropriate than using a simple random sample. Support your discussion with relevant examples, research, and rationale.
• You are a manager working for an insurance company. Your job entails processing individual claims filed by policyholders. In general, few claims are expensive. Each quarter, you compile a report summarizing key claim statistics, such as the number of claims submitted, the average cost per claim, and the total cost of submitted claims. In the last quarter’s report, you notice a large difference between the mean and the median claim cost, the mean cost being much higher than the median cost.
  • Draw a conclusion as to why you might be observing this difference in the data.
  • Evaluate whether this information might be useful for determining if the claims data is normally distributed.
  • If you conclude that the data is likely normally distributed, explain why. If not, suggest another distribution that might best describe the data. Explain why this distribution would be a more accurate representation of the data.
  • Given the large difference between the two measures of central tendency, which of the two measures would you rely on in describing the average claim cost and why? Support your discussion with relevant examples, research, and rationale.
• You are an inventory manager working for a large online retailer. As with any retailer, inventory control is one of the critical success factors for the organization. Having too little inventory risks the loss of sales when your company is unable to fulfill an order. However, too much inventory imposes unnecessary costs on the organization. Often, one of the most important pieces of information that can be used to determine how much inventory to have on hand is the rate at which demand occurs for the product.
  • Determine what information you would need to construct a confidence interval for the demand that will occur during a month.
  • Analyze how the numbers of such a confidence interval might influence the level of inventory that the organization chooses to carry. Support your discussion with relevant examples, research, and rationale.

The final paragraph (three or four sentences) of your initial post should summarize the one or two key points that you are making in your initial response.

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Perform your ratio analysis on your company-

Be sure to include ratio that cover the following areas:

-profitability -Debt management- Liquidity -Asset Management – Market Value.

Provide an analysis that compares your company’s current year ratios to its prior year ratios.

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Reflect on an incident when you felt that you were judged by your intelligence, looks, the way you dress, etc.

Describe how this felt and identify the aspect of diversity which is not at play in this scenario.

1000 words, 5 Academic references

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Assignment 3: Fraud Techniques
Due Week 7 and worth 50 points

Today, there are many industries that remain vulnerable to electronic fraud. For this assignment, you will need to research the Internet for organizations that remain vulnerable and the hacking or fraud techniques they have encountered in the recent years.

Write a 3-4 page paper in which you:

Identify and describe at least two forms of fraud techniques from your research. Include the identity of the government agencies that provide awareness for these types of fraud techniques.
Justify the threat cyber terrorism poses to society. Provide examples to support your justification.
Prioritize steps that should be completed in order to preserve evidence so that it may be used in court cases for trials against computer fraud offenders.
Defend or oppose the legal processes of civil law used to resolve cases against computer crimes offenders. Justify your decision.
Use at least four (4) quality resources in this assignment. Note: Wikipedia and similar Websites do not qualify as quality resources.

Your assignment must follow these formatting requirements:

Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA or school-specific format. Check with your professor for any additional instructions.
Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required assignment page length.

The specific course learning outcomes associated with this assignment are:

Explain the techniques of computer criminals and hackers.
Describe organized crime and cyber terrorism crime.
Categorize the civil matters related to computer crime.
Use technology and information resources to research issues in the investigation of computer crime.
Write clearly and concisely about computer crime investigation topics using proper writing mechanics and technical style conventions.

Discussion 1

“Digital Evidence from Operating System” Please respond to the following:

From the first e-Activity, identify and describe at least two tools that can be used to gather evidence from the operating system. Describe specifics on the level of technical experience required to operate and manage these tools. Cite all your sources.
Give an example of how evidence from an operating system could be used in a civil case trial.

Discussion 2

“Additional Evidence Collection Tools” Please respond to the following:

From the second e-Activity, describe two devices that are available from leading computer manufacturing companies. Prepare details on what types of evidence these tools can gather.
From your selected devices, explain how the tools could be used in a corporate setting and what IT policies they can help enforce. Summarize the process for gathering the evidence with each tool.

Discussion 3

“Human Resources” Please respond to the following:

Your organization is embarking on a long –term project that will require additional human resources on a contract basis to complete the work of the project. Since the project will span several years, you know one vendor probably cannot supply all the resources you’ll need over the course of the contract.
In order to minimize the procurement documents, I want to work with only one vendor throughout the project. Do you think this is a right decision? Why/Why not? Justify your response.
Do you think it’s important that a good IT professional have either strong technical skills, or strong people skills? Why?

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