This lab assignment is to analyze a current events article that uses statistics to verify a margin of error. Limit yourself to one short article that includes a survey or opinion poll (i.e., a confidence interval as in chapter 7). Your current event assignment should include these parts:

1. Copy of the Article – you may look for a short article on an opinion poll or survey in the newspaper, Internet, or similar source. You may even use a memo or policy document from your work. For starters, try these sources:
   www.dallasnews.com
   http://www.usatoday.com/
   http://www.pollingreport.com/
2. Citation Information – state the article’s title, publisher, author(s), date of publication, and URL if available.
3. Summary of the Statistics Problem - summarize in 3 or 4 sentences the confidence interval (i.e., the survey/opinion poll) included in the article. Make sure the opinion poll contains the number of people surveyed, the sample proportion, and the margin of error.
4. Verification of the Statistical Method – show the mathematics behind the confidence interval based on the given information in the article. Be sure to verify the necessary assumptions of section 7-2 (e.g., is the survey based on a random sample, is sample size large enough? See p.320). Next, use the formula for margin of error to compute: the critical value, confidence level, and the significance level.
5. Conclusion – write a one or two sentence conclusion that re-states the confidence interval estimate of the true value of the population proportion p using a compound inequality (e.g., The 95% CI estimate of the proportion of people in favor of …. is 45% < p < 49%, etc.).

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