AP Statistics Final Project For your final project in this class, you will complete a statistical project. The following provides a definition and purpose of a statistical project: DEFINTION AND PURPOSE A statistical project is the process of answering a research question using statistical techniques and presenting the work in a written report. The research question may arise from any field of scientific endeavor, such as athletics, advertising, aerodynamics, nutrition. It differs from a statistical poster in that a written report is used to present the findings. DATA-BASED PROBLEM SOLVING The process of developing a statistical project should demonstrate the scientific method of solving a problem: 1. 2. 3. 4. Pose a focused question or questions. Collect appropriate data. Analyze the data intelligently. Draw correct conclusions. Since you are continually asking questions about things that touch your life, you should have little trouble generating questions about yourself, your school, your family, your neighborhood, or interesting phenomenon in the world. SOME GUIDELINES 1. Once a question is proposed, you should examine it. First, is it a question that can be answered? (“Is there intelligent life in the universe that does not come from Earth?” is an extremely interesting question, but not one that is likely to be answered in a short-term project.) Second, can you collect data to answer the question? Or has someone else already collected data that can be used to find the answer? 2. Once the question is chosen, data must be collected. If published data are used, you should understand how they were obtained and record the source. a. Usually students collect their own data. Time should be spent deciding how to collect it. If a survey is used, how are the people chosen to answer the questionnaire? If two treatments (treatments could be models, grades, genders, etc.) are to be compared, how can comparisons be made fairly? How will the data be recorded? After the details have been worked out, then you are ready to collect the data. Great care should be exercised at every stage of data collection. Remember that careless measurement or recording of data CANNOT be remedied in the analysis phase of the project. 3. Intelligent analysis of the data may take many forms and should be guided by the question and how the data are collected. Usually it is best to begin by graphing the data and reporting one or two variable statistics. Your project MUST incorporate some form of HYPOTHESIS TESTING. 4. Once the analysis is complete the question should be answered correctly. The data may not be able to provide a conclusive answer. For example, one treatment may appear to be better than another, but the difference was not significant. If the question has a definitive answer, then that should be presented. A check should be made at this point to make certain that the answer matches the question. It is easy to get “caught up” in the analysis phase and obtain many answers, none of which addresses the research question. 5. Finally, consider the strengths and weaknesses of the project. What went right? What went wrong? What would be changed if it was done again? THE WRITTEN REPORT (adapted from George M Whitesides’ Article Writing a Paper) Great latitude may be taken in developing the written report. You should plan how to communicate your work effectively. The longest report does NOT necessarily represent the best project. However, the report MUST adhere to the following outline: 1. Title page 2. Table of Contents with page numbers 3. Introduction a. The objectives of the work. b. The justification for these objectives: Why is the work important? c. Background: Who else has done what? How? What have we done previously? d. Guidance to the reader: What should the reader watch for in the paper? What are the interesting high points? e. Summary/Conclusion: What should the reader expect as conclusion? You should also include all the sections that will go in the Results and Discussion Section. 4. Hypotheses in words and symbols 5. Data Collection Method a. This should include technical terms we learned in class regarding your study/experiment. 6. Results and Discussion a. These are usually combined. This section should be organized according to major topics. The separate parts should have subheadings in boldface to make this organization clear, and to help the reader scan through the final text to find the parts of interest. The following list includes examples of phrases that might plausibly serve as section headings: i. Descriptive Statistics ii. Conditions iii. Inferential Statistics 1. Must convey intelligent reasons for the selected statistical test/confidence interval 2. Must show calculations 3. Must have a graph with either test statistic or critical value 7. Strengths and weakness of the entire project. 8. Appendix with data, graphs and/or tables THE RUBRIC • Clearly written Introduction that addresses all of the above • 10 8 Clearly stated null and alternative hypotheses both in words and symbols 10 8 6 4 2 6 4 2 Data Collection Method (How, Why, Who, What and any and all appropriate terms) 10 8 6 4 2 • Clearly outlined Results and Discussion Section 2 • Important and relative statistics presented/discussed under Descriptive Statistics subheading 10 8 6 4 2 • All Conditions stated and verified 10 8 6 4 2 • Describe the test of your hypothesis and show your calculations. 10 8 6 4 2 • Make some conclusion about your hypothesis, using a confidence level. 10 8 6 4 2 • Strengths/Weaknesses/What would you do differently next time? 10 8 6 4 2 • Appendix 10 8 6 4 2 • Data Included, appropriate graphs clearly titled /labeled, tables, charts 10 8 6 4 2 10 8 6 4 2 • 10 8 6 4 • All DUE DATES met on time. • Grammatically correct; understandable English; no spelling mistakes/slang 20 15 10 5 0 • Neatness, presentation (font size 12, single spaced, font type Arial), organization (Title page and table of contents) 20 15 10 5 0 TOTAL POINTS: 160 DUE DATES: Last Day of First Quarter Draft #1 (Topic/Thoughts/Ideas/Outline) Last Day of Second Quarter Draft #2 (Commitment to Project Topic) Last Day of Third Quarter Draft #3 (Data in spreadsheet) Last day for Seniors Final Project Due (hard copy with rubric)