Section outline

  • This class explores techniques that are to test association between two categorical variables. Uses of
    the chi-square distribution are discussed and illustrated. Fisher’s Exact test will also covered.
    Learning objectives for this session
    After completing this class the student will:

    • be able to construct and use contingency tables to test independence
    • understand when it is appropriate to use a chi-square statistic
    • be able to compute and interpret Chi-squared test
    • be able to apply Fisher’s exact test for 2 x 2 tables

    Lecture Topics
    - Contingency tables
    - Observed and expected frequencies
    - Chi-squared test Interpretation
    - R × C Contingency Tables
    - Fisher exact test
    Readings:
    • Chapter 10: Bernard Rosner. Fundamentals of Biostatistics. 7th edition 2010. Boston: Brooks/Cole,
    Cengage Learning

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