Web Resources

Research Methods Knowledge Base - Statistical Terms in Sampling
http://www.socialresearchmethods.net/kb/sampstat.php
This site explores various important statistical terms used in the process of sampling. It also includes a discussion of concepts of sampling distribution, sampling error, and confidence intervals.

Yale University - Confidence Intervals
http://www.stat.yale.edu/Courses/1997-98/101/confint.htm
This site is a good resource for students to study the importance of confidence intervals. It defines the term and provides relevant examples, along with graphics.

U.S. Department of Health
http://www.health.ny.gov/diseases/chronic/confint.htm
This website by the U.S. Department of Health in New York asks what a confidence interval is, and tells the importance of the concept, along with how it is computed.

Pennsylvania State University
http://www2.lv.psu.edu/jxm57/irp/chisquar.html
This website examines the chi square test by providing a synopsis of its role in statistical analysis, along with example data and steps for how it is calculated.