Need help answering Discussion Questions below...Only #1 and 2 are due today.
1) Polling Organizations: Polling agencies claim to provide accurate readings of the pulse of America. They give the public a percentage of the population who are likely to vote for a particular candidate or a company the probability that their customers may purchase their product. Polling organizations sample the population and use a proportion to predict the results during an election or the likelihood a customer will buy. Choose a polling organization and look up a current sampling situation. Discuss the poll, sample size, margin of error, and inferences. Explain the importance of this data and what you find interesting about the results.
2) Health Care - Margins of Error: For many medical conditions, treatment successes vary within a range. The textbook provides examples in Section 7.4 on: garlic for reducing cholesterol, Akins weight loss, Echinacea treatment for upper respiratory tract infections, acupuncture for migraines, and magnets for treating back pain. Describe a medical condition of your choice, look up the success rate of the treatment, final the margin of error, and explain what you can infer from the results. Use a website reference to collect additional data and cite your source. Explain the importance of this data and what you find interesting about the results.
3) Social Media Statistics: Google, Facebook, Apple, LinkedIn, Skype, Instagram, Flickr, and other sites want to know more about their customers. Choose one or more websites, apps, or software producers and share with the class the types of statistics they collect and how statistics help them make decisions. You can Google search engine statistics, social media statistics, statistics on Google and Facebook users, or any other individual or combination. There are some fascinating sites out there. Use a website reference to collect additional data and cite your source. Explain the importance of this data and what you find interesting about the results.
4) Google Scholar Research: Use Google Scholar to find a research study in any area of interest to you that involves hypothesis testing. Describe the study, hypothesis test, null/alternative hypothesis, alpha value, one or two-tailed test, results, and inferences they made. Please make sure you cite references to any sources you use for this question and all other assignments in this course. Explain the importance of this data and what you find interesting about the results.
5) Drug Testing: Many hypothesis tests in medicine compare the improvement of a condition given a specific drug versus the medical condition given a placebo. Clinical drug trials of Chantix for smoking and Lipitor for cholesterol are presented in the textbook problem sets. Research any medicine of your choice online and present to the class the hypothesis test, null/alternative hypothesis, alpha value, one or two-tailed test, results, sampling method, tests conducted, and evidence that supports the claim that the medicine you chose significantly helps or hurts those patients. Also, what are the side effects? Explain the importance of this data and what you find interesting about the results.
6) Gender Discrimination in the Academy Awards: Each year at the Academy Awards, gold statues, called Oscars, are awarded for best actor and actress. The ages for best actors and actresses for each year are provided in the textbook and can also be found online. Using a 0.05 significance level conduct a hypothesis test to determine if there is a significant difference between the mean ages of best actors and best actresses for the entire data set of best actors/actresses. Present the data, test the hypothesis, tell the class whether there is sufficient evidence and why. Explain what inferences you made from these results.
7) Correlation and Closing – There was a not a placement test for this class, but do you think there would be a positive correlation between a placement test score and the final grade in this class? What class, knowledge, or lesson do feel would prepare you for this course? Should there be a prerequisite course or a prep course before this class? What did you feel was the most helpful part of thiscourse in learning the material? What topic was the most interesting to you? It was a pleasure having you in class!!!
|Due By (Pacific Time)
||06/09/2013 08:00 pm