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Archosaur Case Study

The Archosaurs: The Relationship Between Body Size and Brain Size case study and data sets


Download the case study
Download the data set - 1
Download the data set - 2


Determine if a power law model fits the data provided. Key ideas: Power Law Models, Logarithmic Transformations, Regression

JMP features demonstrated:

Analyze > Distribution, Analyze > Fit Y by X, Formula Editor, dynamic transformation in Graph Builder

Statistical/graphical tools used:

Histogram and summary statistics, fitting a regression line, log transformations, residual plots, interpreting reqression output and parameter estimates, inverse transformations.


Statistics case studies provided by Dewayne Derryberry of the Math Department at Idaho State University.

Note:  Minor revision May 13, 2015 for JMP 12.