Introduction to the Chi-Square Distribution
Okay, so far in AP Stats, when we've done inference, we've mostly been dealing with quantitative dat
Chi-Square Goodness-of-Fit Tests
Alright, let's get into our first type of Chi-Square test: the Goodness-of-Fit test! This test is al
Chi-Square Tests for Homogeneity
Now, let's level up! What if you want to compare the distribution of a categorical variable across *
Chi-Square Tests for Independence
Alright, let's flip the script one more time! Instead of comparing distributions across groups, what
Expected Counts in Two-Way Tables
Okay, so for both homogeneity and independence tests, you're going to need expected counts. These ar
Conditions for Chi-Square Tests
Just like with z-tests and t-tests, Chi-Square tests have a strict set of conditions that MUST be me
Carrying Out a Chi-Square Test (STATE, PLAN, DO, CONCLUDE)
Alright, this is where it all comes together! We're going to put on our full statistician hats and w