Mini-Project II Guidelines, Example and Assignment

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Mini-Research project II in memo format The detailed mini-project assignment is in Appendix E on pages 472-473 of the book; it is called Project 2: Estimation. Use GSS 2018 data. Read the assignment carefully and then read my instructions provided below. My instructions override the book's instructions. Maximum - 500 words. Please do not go over the word limit. The word limit does not include the tables. Use Times New Roman font, double space. PART A of the project: USE ONE INTERVAL - RATIO VARIABLE, DO NOT USE ORDINAL VARIABLE FOR THIS PART AS THE BOOK SUGGESTS. PART B of the project: USE ONE NOMINAL OR ONE ORDINAL VARIABLE. DO NOT USE the same variables that are used in the example of the project and in APPENDIX E on pages 472-473 of the book. Here are the variables that should not be used in your project: sex cappun; marital; hrs1; childs In your previous SPSS assignments you found point estimates - mean, median or mode for the variables from the data set - and you got characteristics of an average American. In this Mini research project you should estimate the characteristics of the population of the USA (confidence intervals for means and percentages/proportions). Let me repeat this - for this assignment you are asked to use the SPSS output to find only: For part A: The (valid) number (N), mean, and standard deviation for one interval-ratio variable; THIS IS VERY IMPORTANT - USE ONLY INTERVAL– RATIO VARIABLE. Do NOT use ordinal variable, as the book suggests. For estimating the C.I.’s around the means you should better take interval-ratio variable such as age, or highest year of school completed, number of hours watching TV, number of hours use the web. It is very easy to interpret the means for these variables. For part B: The (valid) number (N) and percentage or proportion (the valid percent value divided by 100) for one nominal or one ordinal variable. It does not matter how many categories they have – two or ten. Reporting just one category is sufficient for your purpose. It is up to you to decide how many categories of the variable to report. However, do not report too many. Then you are expected to calculate the C.I.’s using Formula 7.2 or Formula 7.3. Formula 7.3 can be modified: see the project example.

The project example is posted at the top of this page. Please pay attention to the fact that the example is based on GSS 2002 data, not GSS 2018. For all variables: do not forget to use only those respondents who were asked the question. Not all questions/variables have the same (valid) number of the respondents (N). Be attentive. Attachment: SPSS Tables and Calculations Hand calculations (use your calculator) should be attached to the memo. Use the Equation program in Word to type your calculations. Suggestion on editing the SPSS tables in SPSS output view: Double click on the table in the SPSS output window to make the tool-bar change. Then click Format and make the changes to fit the table on the page (choose Autofit or/and Rotate inner column labels).

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