Introducing Statistics: Do you have a type?
Alright, future statisticians! This topic is our grand entrance into the world of inference. Up unti
Constructing a Confidence Interval for a Proportion
Okay, so we've got a sample proportion, p̂. Maybe 60% of your sample prefers pizza. But we know that
Justifying a Claim: Hypothesis Test for a Proportion
Okay, sometimes we're not just estimating; we have a specific claim we want to test. Maybe a company
Potential Problems with Confidence Intervals and Hypothesis Tests
As awesome as inference is, it's not foolproof! There are risks involved, specifically making the wr
Inference for Differences Between Groups: Confidence Interval for the Difference of Two Proportions
What if we want to compare two different groups? Like, is the proportion of students who prefer onli
Justifying a Claim: Hypothesis Test for the Difference of Two Proportions
Just like with single proportions, we can also test claims about the *difference* between two propor
Chi-Square Goodness-of-Fit Tests
Alright, let's switch gears a bit! What if you have one categorical variable, but it has *more than
Chi-Square Tests for Homogeneity or Independence
Now, let's get fancy! What if we have *two* categorical variables and we want to see if there's an a