Answer the following questions as completely as possible. Reference your answers informally (meaning you need not use APA style). For a reference to our text use (Text, p. xx). For a Web page use the url (http://domain.com/directory/file/). For print material, cite author(s), date, and pages (Smith & Barney, 2001, p. 345-347). Direct any questions to me via e-mail (epkardas@saumag.edu). Return your answers at the beginning of class next week. Answer ALL of the questions! No handwritten answers will be accepted. Aim for at least one page per answer. Assume I know nothing.
Deadline: 2008-04-30
1. What is the difference between descriptive and inferential statistics. Give a comprehensive list of both and describe the use of each one on your list.
2. What is statistical power? Give ways to increase power.
3. Define correlation. Tell what the sign of a correlation means. Tell what the absolute value means. Give one example of a positive correlation and one example of negative (or inverse) correlation.
4. What is linearity? Why is linearity important to both regression and multiple regression?