Natural Resource Biometricst distributionsFigure 1. Example of an t distribution illustrating the critical value for an α = 0.05, df = 30, 2tailed. Figure 2. Example of an t distribution illustrating the critical value for an α = 0.05, df = 30, 1tailed. For table of t critical values . In Excel® to look up a table number use:
Also See: Chapter 9  Significance of a Difference between Two Means pages 108124 in:
Chapter 9  TwoSample Hypotheses pages 126130 in:

Natural Resources Biometrics by David R. Larsen is licensed under a Creative Commons AttributionShareAlike 4.0 International License . Author: Dr. David R. Larsen Created: July 19, 2000 Last Updated: September 24, 2014 