Lesson 23: Intro to ANOVA
April 27, 2026
Review:
- Exam 3

- Final Exam on Wed May 6
Presentation:
- How is statistics used in web marketing?
- AB Testing
- Compare click-through or sales outcomes
- Color decisions
- CTA phrasing
- AB implies only 2.
- Very similar approach to Hypothesis testing
- Instead of testing a sample against a population, test 2 samples
- One-Sample t-test and Two-Sample t-test
- Calculate a t-statistic and associated p-value
- Compare p-value to alpha to determine significance
- Compare click-through or sales outcomes

- Demonstrate Two-Sample T-Test in Sheets
- What if you want to test 3 or more?
- This is where ANOVA comes into play
- One-way ANOVA (or Single Factor ANOVA)
- Demo ANOVA in Sheets
- Video: One-way ANOVA
Activity:
- Run One-Way ANOVA in Sheets
- Use the data under the “Exercise 1”, “Exercise 2”, and “Exercise 3” tabs