Dec 242014

The Chi-square goodness of fit test can be used to test whether observed data are different from expected values based on a hypothesis. This test and lesson is a good introduction to statistical analysis of biological data for high school students. They will test their hypotheses with data and make scientifically rigorous conclusions.

**At the conclusion of the lesson, students will be able to:**

- Formulate a hypothesis to test.
- Calculate expected values to test based on their hypothesis.
- Calculate the Chi-square value using a Chi-square table.
- Find the probability range for their Chi-square value and decide to support or reject their hypothesis based on the probability range.

**Resources:**

*Lesson Plan created by GK-12 Fellow Bonnie McGill, 2014*