Browsing All posts tagged under »blue text«

Two-tailed tests, one-tailed tests

June 8, 2012

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No one is making requests, but there have been searches on this site about tests with different numbers of tails. So here, without ado, is how you specify whether a Fathom test should be one or two-tailed, and if one-tailed, which one: First, check out this post about Fathom’s test objects in general. The key […]

How to Do a t-Test in Fathom

May 3, 2012

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How do you do a regular old t-test, no randomization? It’s easy, but different from how you do it in other programs. 1. Make a “test” object. Look at the shelf (a.k.a. toolbar), find the “test”, and drag one into your document. 2. Choose the kind of test you want from the menu. Here, we’re […]

What If You Just Have Summary Statistics?

May 2, 2012

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This came from an AP-Stat listserv discussion April 2012: Hello Tim, Corey, Dennis – I also use Fathom and appreciate its power and flexibility in the educational setting. However, a serious limitation for me is Fathom’s inability of handling categorical data from summarized values as those from data tables in many AP textbook exercises. Question: […]