Use Inferential Statistical Methods to answer a question relevant to you. This can be done in a variety of ways, including hypothesis tests on a mean, proportion, two means, or two proportions. You can also use the methods in Chapter 14 (linear regression/correlation) covered to answer all parts of the project. Requirements: 1. Choose a question. (ex. Politics #56. Do Iowans in Polk County approve of the U.S. President?) 2. Determine appropriate hypotheses to answer this question based on the information in the source. a. State a research hypothesis in non-technical terms (ex: A majority of Polk county Iowans approve of the U.S. President.) b. State the null and alternative hypotheses using formal notation. (ex: H0: p = 0.5 H1: p > 0.5 where p is the proportion of Polk County Iowans who approve of the U.S. President) 3. Indicate the population you intend to infer your result to. [Hint: The sample from your source should be representative of this population.] 4. Carry out an appropriate hypothesis test using StatCrunch. Thoroughly report your findings by including: a. Describe the sampling method and any other details about the data collection process. b. State your sample statistic(s). c. Describe the statistical test used, state the assumptions for this method, and verify or justify what they hold here. d. State the test statistic value and P-value. e. State the conclusion and interpret the result in context. [Hint: This should reference the P-value and answer your original question of interest.] f. State an appropriate confidence interval based on the sample data. g. Interpret this confidence interval in context and explain how it supports the results from the hypothesis test. h. Are the results both statistically and practically significant? Explain. 5. Submit a report with answers to 1-4. Include a link to the source, screenshots of specific information used from the article, and screenshots from analysis in StatCrunch at the end under the heading 'Appendix'. See over for the template.

MAT 156 Sample Data Write a paragraph or two detailing the data that will be used to answer the question/claim. Be sure to include answers to 4 a. (describing the sampling method and any other details about the data collection process) and 4b. (report sample statistics) here also. Population Write a sentence indicating the population results will be inferred to (3. in the project directions) Hypotheses State the specific hypothesis that will be tested here in non-technical terms as well as in formal notation (2 a. and b. in project directions). Analysis Write a paragraph with the hypothesis test results stating the statistical test used, justifying any assumptions, reporting the test statistic, P-value, and conclusion in context from the test (4 c., d., and e. in project directions). Write a second paragraph reporting an appropriate confidence interval, interpreting this confidence interval in context, and explaining how it supports the hypothesis test result (4 f. and g. in project directions). Conclusion End your report by relating back to the introduction, answering the question of interest , and discussing whether the results are both statistically and practically significant. Appendix Include a link to the source as well as screenshots of any specific information used from any lengthy articles or websites. Include screenshots of both StatCrunch hypothesis test output and StatCrunch confidence interval output.