BrownMath.com → Statistics → Inferential Stats Triage
Updated 27 July 2013 (What’s New?)

Triage: Which Inferential Stats Case Should I Use?

Copyright © 2007–2017 by Stan Brown

Summary: How do you know which hypothesis test or confidence interval to use? This page leads you through a series of decisions to a specific numbered case, cross referenced to Inferential Statistics Cases.

The interactive version is much easier to use. Please visit https://BrownMath.com/stat/castriag.htm.

If you print this page, it will appear in a more compact form but you’ll lose the interactivity.

See also: For a chart with many more tests, see Harvey Motulsky’s Intuitive Biostatistics: Choosing a Statistical Test.

Start Here

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What type of data do you have?

 

Node 100. Numeric data

What population parameter are you trying to make inferences about?

 

Node 110. Numeric data, pop. mean(s)

How many samples or populations are there?

 

Node 120. Numeric data, one pop. mean

Do you know the standard deviation of the population?

 

Node 150. Numeric data, pop. standard deviation(s) or variance(s)

How many populations are there?

 

Node 200. Binomial (yes/no) data

How many samples or populations are there?

 

Node 300. Categorical data

How many populations are there?

 

Node 350. Categorical data for one population

How many variables are there?

 

What’s New

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