Quantitative analysis of sociological data
Question Completion Status: Take Test: Midterm Exam Test Information Description This is the midterm exam. It covers content mostly in the first four chapters of the text. It will be open till March 15 5:30pm. Remember to save your answers whenever you enter them. Also please organize your answers so it is absolutely clear which questions or parts of questions you are answering. You may work with your colleagues, but you should make sure that any writing is yours alone. There should not be substantial overlap between your writing and any other person in the class. Click SAVE AND SUBMIT when you are done with the entire exam to send it to me. If you click SAVE AND SUBMIT by mistake, and before you are finished, I will not be able to return the exam to you and you will have to restart the exam. It is difficult to represent some of the formulas that we have used in class in blackboard so in lieu of providing formulas, just describe what you are doing. There is also no need to provide tables. Instead, place your answers so it is clear exactly which parts of questions you are answering. Instructions This is the midterm exam. It covers content mostly in the first four chapters of the text. It will be open till March 15 5:30pm. Remember to save your answers whenever you enter them. Also please organize your answers so it is absolutely clear which questions or parts of questions you are answering. You may work with your colleagues, but you should make sure that any writing is yours alone. There should not be substantial overlap between your writing and any other person in the class. Click SAVE AND SUBMIT when you are done with the entire exam to send it to me. If you click SAVE AND SUBMIT by mistake, and before you are finished, I will not be able to return the exam to you and you will have to restart the exam. It is difficult to represent some of the formulas that we have used in class in blackboard so in lieu of providing formulas, just describe what you are doing. There is also no need to provide tables. Instead, place your answers so it is clear exactly which parts of questions you are answering. Multiple Attempts This test allows multiple attempts. Force Completion This test can be saved and resumed later. Your answers are saved automatically. QUESTION 1 Employees of a marketing firm want to increase a new product’s popularity among younger consumers. They think that a social media marketing campaign will increase the product’s popularity among younger consumers. a). Turn the proposed strategy into a social science research question that can be tested empirically. Remember that research questions are questions. Make sure that you formulate your answer as a question. b). Identify the variables in the question. Which variable is the independent variable, and which is the dependent variable? c). What is the unit of analysis? d). Formulate a hypothesis for the reserach question proposed. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 10pt P 0 WORDS POWERED BY TINY 10 points Save Answer QUESTION 2 Identify the level of measurement most appropriate for the following variables: a. Yearly income (High, Medium, Low) b. The speed that a vehicle is moving in miles per hour c. Yearly income (in dollars) d. Social Security numbers e. $10,000) Yearly income (rounded to the nearest f. General happiness (Very Happy, Somewhat Happy, Not Very Happy, Sad) g. A person’s nationality h. Ancestry For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 10pt P 0 WORDS POWERED BY TINY 10 points Save Answer QUESTION 3 The following frequency distribution is taken from the General Social Survey. Homosexuals Should Have the Right to Marry, 2006 frequency cumulative % Strongly Agree Agree Neither Agree Nor Disagree Disagree Strongly Disagree 611 15.2 500 27.7 900 50.1 900 72.6 1100 100.0 Reference: Table 1 According to Table 1, a) what proportion of respondents neither agree nor disagree? b) What percent of respondents neither agree nor disagree? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 10pt P 0 WORDS POWERED BY TINY 10 points Save Answer QUESTION 4 The following graph depicts the number of respondents by racial group, where 1 = White, 2 = Black, and 3 = Other. Explain why this choice of graphic is or is not appropriate for these data. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 10pt P 0 WORDS POWERED BY TINY 10 points Save Answer QUESTION 5 What kind of chart (a bar chart or histogram) would be appropriate for displaying the data presented in the table below? Explain your answer. Number of Whites Blacks Children 0 903 151 1 513 126 2 872 136 3 531 105 4 282 45 5 83 25 6 51 18 7 25 13 8+ 16 11 For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 10pt P 0 WORDS POWERED BY TINY 10 points Save Answer QUESTION 6 Indicate whether the distribution of data in the table below is skewed positively, or negatively or not skewed. Document your answer with data. What measure of central tendency is the most appropriate for these data. Justify. State Proportion of Residents without Health Insurance Louisiana .50 New Jersey .90 New York .2 Pennsylvania .9 Rhode Island .5 South Carolina .13 Texas .35 Washington .14 Wisconsin .10 California .02 Mississipi .83 Kansas .9 Iowa .16 For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 10pt P 0 WORDS POWERED BY TINY 10 points Save Answer QUESTION 7 Which measures of central tendency are appropriate for summarizing the following variables? a. drivers. Typical age of persons killed by drunk b. Typical economic class of people in c. Typical height of NBA players. prison. d. program Typical race of people in the space For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 10pt P 0 WORDS POWERED BY TINY 10 points Save Answer QUESTION 8 The 2006 General Social Survey asked respondents about the number of children that they have. Consider the following sub-sample of responses to that questions: 6,9,10,11, 2, 17, 4, 5, 1, 2, 2, 3, 1, 2, 4, 5,0,0,9,11,15,16. Using these data, calculate the first quartile, the second quartile and the third quartile as well as the value of the interquartile range. What does the interquartile range usually tell you about your data? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 10pt P 0 WORDS POWERED BY TINY 10 points Save Answer QUESTION 9 Consider the following hypothetical data on months to college graduation: 21, 25, 52, 38, 39, 90, 44, 50, 70, 90, 100, 200, 46, 52, 300, 100, 75, 90. Report the variance and standard deviation of months to college graduation for this group. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 10pt P 0 WORDS POWERED BY TINY 10 points Save Answer QUESTION 10 A graphic device which is able to simultaneously present the range, the interquartile range, the median, and the minimum and maximum scores is referred to as a: A. histogram B. distribution C. IQV D. box plot 10 points Save Answer QUESTION 11 Race-ethnic composition of student body at UC Berkeley, 1984 and 2006 1984 Race-ethnicity 61 White 5 Black 6 Latino 24 Asian 4 Other 100 Total 2006 32 3 11 41 13 100 The table presents the race-ethnic composition of the student body at UC Berkeley. Use the appropriate measures of variability to examine whether or not the student body became more or less racially-etnically diverse between 1984 and 2006. Document your conclusions with data. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Paragraph Arial 10pt Click Save and Submit to save and submit. Click Save All Answers to save all answers. P 0 WORDS POWERED BY TINY Save All Answers Save and Submit
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