We have updated, revised, and improved our Statistical Applets. Within StatsPortal, each applet will be an assignable activity, with auto-graded questions for students to answer. When linked to from our free book companion site or from an ebook page, the applets will appear as "standalone versions", without these questions.

Click the links below to use the new Applets. In future versions of StatsPortal, the new Applets will replace the older Applets wherever they appear in the Portal.

One-Way ANOVA |

Normal Approximation to Binomial Distributions |

The Central Limit Theorem |

Confidence Intervals |

Correlation and Regression |

Mean and Median |

Normal Density Curve |

One-Variable Statistical Calculator |

Statistical Power |

Probability |

The Law of Large Numbers |

P-Value of a Test of Significance |

Simple Random Sample |

Statistical Significance |

The Reasoning of a Statistical Test |

Two-Variable Statistical Calculator |

The Chi-square goodness of fit test |

Confidence Intervals for Proportions |