StatKey

StatKey is a free set of browser-based statistical tools for introductory statistics courses. It was built to accompany the textbook Statistics: Unlocking the Power of Data by Lock and colleagues. The tools cover descriptive statistics, bootstrap confidence intervals, randomization tests, and distributions. Everything runs in the browser with no account or download. It suits students in intro stats classes and instructors demonstrating concepts live. Each tool includes built-in help and examples. Check the official site for the tool menu and guides.

Key Features

1. Bootstrap Intervals

Build confidence intervals by resampling your own data. The visual process demystifies a tricky statistical idea.

2. Randomization Tests

Run hypothesis tests by shuffling data thousands of times. You see p-values emerge from the process.

3. Distribution Explorer

Explore normal, t, chi-square, and other distributions interactively. Changing the settings shows instant visual results every time.

4. Descriptive Statistics

Compute summaries and graphs for your own datasets. Quick visuals reveal patterns hiding in the data.

Frequently Asked Questions (FAQ)

What is StatKey?

StatKey is a free collection of browser-based statistical tools for intro courses, covering bootstrap, randomization, and distributions.

What textbook goes with StatKey?

It accompanies Statistics: Unlocking the Power of Data by Lock, Lock, Lock, Lock, and Lock.

Do I need to install anything?

No. Every tool runs in the browser with no account or download required.

Who should use StatKey?

Students in introductory statistics and instructors who want live, visual demonstrations of core ideas.

Conclusion

StatKey makes abstract statistics hands-on and visual. It suits intro stats students and teachers demonstrating ideas live in class. The tools are free with no account needed. Open a tool, load the example data, and watch statistical concepts come alive. Pair it with the Lock textbook for full effect. It runs on any device with a browser.