MISSION 99

Chi-squared tests

Learn how to apply the chi-squared test to determine if observed data follows an expected pattern.

Objectives

  • Learn to determine the statistical significance of observing a set of categorical values.
  • Learn to generate and work with the chi-squared distribution.
  • Learn the basics of Degrees of Freedom.

Mission Outline

1. Observed and expected frequencies
2. Calculating differences
3. Updating the formula
4. Generating a distribution
5. Statistical significance
6. Smaller samples
7. Sampling distribution equality
8. Degrees of freedom
9. Increasing degrees of freedom
10. Using SciPy
11. Next steps
12. Takeaways

probability-statistics-intermediate

Course Info:

Probability and Statistics in Python: Intermediate

Intermediate

The median completion time for this course is 6.49 hours.

This course requires a Basic subscription. It includes six missions, and one guided project. This course is 17th course in the Data Analyst in Python path and Data Scientist in Python path

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