Probability Sampling
This website lists five different types of probability sampling, giving the advantages and disadvantages of each. |
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http://www.cems.uwe.ac.uk/~pwhite/Backup/SURVEY1/node27.html |

**The t-test Tutorial: Comparing Cultures
This tutorial takes the learner step-by-step in applying descriptive and inferential statistics using a real world situation. |
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http://wise.cgu.edu/wise-tutorials/tutorial-t-test/ |

**Introduction to hypothesis testing -- The z-test
This exercise will help the user understand the logic and procedures of hypothesis testing. To make best use of this exercise, the user should know how to use a z table to find probabilities on a normal distribution, and how to calculate the standard error of a mean. Relevant review materials are available from the links provided. The user will need a copy of the hypothesis testing exercise... |
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http://wise.cgu.edu/portfolio/demo-hypothesis-testing/ |

Confidence Interval Game
This applet is meant to test a student's ability to estimate p values from confidence intervals. |
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http://wise.cgu.edu/portfolio/demo-confidence-interval-game/ |

Our version of Marden's Applet
Allows the user to click in a plane to add points. The goal is to reach a certain r correlational coefficient. http://onlinestatbook.com/rvls.html |
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http://www4.stat.ncsu.edu/~west/applets/clicktest.html |