Free Statistics Help Book
An Interactive Multimedia introductory-level statistics book.
The book features interactive demos, simulations and case studies.
Chapter
Section
Summarizing Distributions :  

Comparing Distributions Demo



We recommend that you begin by answering questions before interacting with the simulation.


General Instructions


This demonstration collects response time data from you and computes various descriptive statistics. It also displays histograms and box plots. After you click the button to begin, a rectangle will appear to the right of the button. Move the cursor to the rectangle and click. The time it takes you to click on the rectangle is recorded. Half of the time the rectangle is small and half of the time it is big. After two practice trials and 40 regular trials, the descriptive statistics and graphs will be displayed.


Step By Step Instructions


1. Do the experiment.


2. Compare the two distributions on both the descriptive statistics and graphs.


Summary


It is valuable to see both descriptive statistics and graphs when trying to characterize differences between distributions.






Questions


Begin by answering the questions, even if you have to guess. The first time you answer the questions you should not check your answers. Once you have answered all the questions, answer them again using the simulation to help you. The second time through click the “Check Answer” button to get feedback.
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