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The National Transportation Safety Board collects data by state (including the District of Columbia) on traffic fatalities. Part of this data is shown in the following table, along with potentially related factors including population, number of licensed drivers, number of registered vehicles, and total number of vehicle miles driven. You have been asked to develop a model to help explain the factors that underlie traffic fatalities. a. Build a linear model to predict traffic fatalities based on all four potential explanatory variables as they are measured in the table. Evaluate the model in terms of overall goodness-of-fit. Evaluate the results for each regression parameter: Are the signs appropriate? Are the values different from zero? b. Can you improve the model in (a) by removing one or more of the explanatory variables from the regression? If so, compare the advantages and disadvantages of the resulting regression from the one in (a). c. Can you improve the models in (a) or (b) by transforming one or more of the explanatory variables from the regression? If so, compare the advantages and disadvantages of the resulting regression from the ones in (a) and (b). Traffic State fatalities AL AK AZ AR CA CO 5882 CT DE DC FL 1,083 85 903 610 4,226 585 310 112 69 2,687 Population (thousands) 4,219 606 4,075 2,453 31,431 3,656 3,275 706 570 13,953 Licensed drivers (thousands) 3,043 443 2,654 1,770 20,359 2,620 2,205 512 366 10,885 Registered vehicles (thousands) 3,422 508 2,980 1,560 23,518 3,144 2,638 568 270 10,132 Vehicle miles traveled (millions) 48,956 4,150 38,774 24,948 271,943 33,705 27,138 7,025 3,448 121,989

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A project can be something as simple as taking a vacation, having a family reunion, putting on a wedding, having a birthday party, or buying / selling a house. The project could also be job-related, such as managing a major technology upgrade for the organization, putting together an annual management retreat for all employees, or something else that meets the definition of a project. The focus of your paper should be on the concepts learned from the chapter readings and not how well you can describe a project. All opinions must be supported with sources and in-text citations. Also, feel free to use different projects for each assignment. Note: To avoid a high SafeAssign percentage, do not simply copy and paste from one assignment to the next. Note: You are prohibited from using projects that can be found on the Internet, including projects found in places such as CourseHero. All project submissions are submitted to SafeAssign for review. Instructions Write a 3–4 page paper in which you define the scope of your project: Provide an introduction and overview of the project. Explain why it is important to define the goals and objectives for a new project. Describe at least two goals for the project and describe an objective for each of the goals. Include in-text citations from credible sources that explain the importance of establishing and defining goals and objectives for a new project. Explain why it is important to understand the organizational structure where the project will be completed. Describes project management structures. Describe the project management structure that you will use to manage your project and why you made that choice. For example, will you manage it via the existing functional structure of the organization, set up a projected/dedicated project team, or use a matrix management structure? If you will use a matrix structure, which type will you use? Include in-text citations from the course textbook to explain these structures and the benefits of one over the other. Define the term "project stakeholders," identify the stakeholders involved with your project, and discuss their impact/role on the project. Discuss some of the best practices for estimating and developing a project budget. Use at least three sources to support your writing. Choose sources that are credible, relevant, and appropriate. Cite each source listed on your source page at least one time within your assignment. For help with research, writing, and citations, access the library. This course requires the use of Strayer Writing Standards. For assistance and information, please refer to the Strayer Writing Standards link in the left-hand menu of your course. Be sure to include a cover page and Sources list. Note: the cover page and Sources list is not included in the 3–4 page count requirement. Check with your professor for any additional instructions. The specific course learning outcome associated with this assignment is: Draft a project plan that includes goals and objectives, recommended structure, and stakeholders for a successful project.

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A proposal is meant to demonstrate that there are logical reasons for doing the research in a certain way and that practical and ethical issues have been considered. In this assignment, students are asked to develop certain aspects of a research proposal using qualitative methods. Guidelines Follow the instructions provided to develop a plan for research that adopts a qualitative methodology. In particular, you should formulate an idea for studying a topic of sociological interest with a focus on specific concepts that can be studied in a qualitative manner. You should draw upon your learning in the course to explain each of the following components. Title of the research study Introduction to the social phenomenon of interest – In a few sentences to one paragraph, explain a topic of sociological interest that you will focus on for a qualitative study. Indicate whether there is a specific dimension of the topic or concept that you are interested in. Research question - In one or two sentences, explain the question that you will seek to answer. Methodological approach and research design - In a few sentences to one paragraph, explain why a qualitative approach is a good fit. As well, identify the research design that you will use. Target population/setting and sampling – In a few sentences, explain who or where you will study and/or collect data from, and what type of sampling will be used to select participants. Methods of data collection: Choose one qualitative method that will allow you to collect data on your phenomenon of interest from the target population/setting. You should choose one of the following options: in-depth interviews; focus group discussions; ethnography/participant observation; or, visual methods. In a few sentences, explain the method for data collection and why it is a good fit with the topic and research question. As well, develop a guide for data collection or outline specific steps that would be followed to generate the desired data. Plan for data analysis plan – In a few sentences, explain the main steps involved in analyzing the qualitative data produced by your methods. You might identify the general approach that you would use or specific type of analysis, but the important part is to give a sense of how data analysis would be approached and what the outcome would be. Strengths and limitations of the proposed research – In a few sentences, identify one strength of your research plan with reference to criteria for evaluation. As well, identify one limitation of your plan with respect to criteria for evaluation. Ethical considerations – In a few sentences to a paragraph, identify one or two ethical principles relevant to the research plan and describe how it/they would be addressed.

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Cost Modeling. General Widget Corporation has collected data on the daily output and daily production cost of widgets produced at its factory. (Data for the study are shown in the table below.) The company believes that daily output (DO) and daily production cost (PC) ought to be linearly related. Thus, for some numbers a and b: PC = a + b x DO Build a least-squares model to estimate the parameters a and b in the linear relationship. In other words, minimize the sum of squared differences between the model’s predicted values and the observations. What are the best values of the parameters a and b for this criterion? a. What is the minimum value of the objective function? (Verify your results by using Excel’s Regression tool.) b. Suppose, instead, that a better criterion is thought to be minimizing the sum of absolute deviations between the model’s predicted values and the observations. What are the best values of the parameters a and b for this criterion? What is the minimum value of the objective function? c. Suppose, instead, that a better model than the linear model is thought to be the power function PC = a(DO) b Using the sum of absolute deviations (as in the previous part), what values of a and b provide the best fit? What is the minimum value of the objective function? Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7 Day 8 Day 9 Day 10 Output 5,045 6,127 6,360 6,645 7,220 9,537 9,895 10,175 10,334 10,855 Production Cost 2,542 2,812 2,776 3,164 4, 102 4,734 4,238 4,524 4,869 4,421

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Leasing Warehouse Space. Cox Cable Company needs to lease warehouse storage space for five months at the start of the year. Cox knows how much space will be required in each month, and the company can purchase a variety of lease contracts to meet these needs. For example, Cox can purchase one-month leases in each month from January to May. The company can also purchase two-month leases in January through April, three-month leases in January through March, four-month leases in January and February, or a five-month lease in January. In total, there are fifteen possible leases the company could use. Cox must decide which leases to purchase and how many square feet to purchase on each lease. Since the space requirements differ month to month, it may be economical to lease only the amount needed each month on a month-by-month basis. On the other hand, the monthly cost for leasing space for additional months is much less than for the first month, so it may be desirable to lease the maximum amount needed for the entire five months. Another option is the intermediate approach of changing the total amount of space leased (by adding a new lease and/or having an old lease expire) at least once, but not every month. Two or more leases for different terms can begin at the same time.The space requirements (in square feet) are shown in the table below: Leasing costs (in dollars per thousand square feet) are given in the next table: The task is to find a leasing schedule that provides the necessary amounts of space at the minimum cost.a. Determine the optimal leasing schedule. What is the optimal total cost and the corresponding schedule?b. Describe the qualitative pattern in the solution.c. Use the pattern in (b) to trace the effects of increasing the space required for January. How will the leasing schedule change? How will the total cost change?d. For how much of a change in January’s requirement will the pattern persist? Month Jan Feb Mar Apr Required space 15,000 10,000 20,000 5,000 May 25,000

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Coordinating Advertising and Production. The Hawley Lighting Company manufactures four families of household lighting at its factory. The product families are table lamps, floor lamps, ceiling fixtures, and pendant lamps. The table below shows the average material costs for each of the products. Each product is made in one of two production processes by purchasing components, assembling and testing the product, and, finally, packaging it for shipping. Table lamps and floor lamps go through the assembly and finishing process in Department 1, while ceiling fixtures and chandeliers go through the process in Department 2. Variable production costs and capacities (measured in units of product) are shown in the table below. The capacities are measured in units of product. Note that there are regular and overtime possibilities for each department. Average selling prices for the four products are known, and estimates have been made of the market demand for each product at these prices. These figures are shown in the following table: Sales levels can also be affected by advertising expenditures. Starting with the demand levels in the table, an increase of up to $10,000 in advertising raises the demand by the percent shown in the last row. An expenditure of less than $10,000 in advertising will lead to a proportional effect on demand. For example, an increase in advertising of $5,000 for table lamps would raise demand by 6 percent, or 3,600 units. However, there is a budget limit of $18,000 on the total amount to be spent on advertising among all four products.a. What is an optimal output plan for the company?b. For each department, what is the marginal value of additional overtime capacity?c. What is the marginal value of additional advertising dollars?d. What is the marginal value of additional sales for each product? Product Material cost Table $66 Floor $85 Ceiling $50 Pendant $80

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