AP Statistics Cram May 1, 2021

Get ready for the AP Statistics exam with this focused cram session on Units 8 and 9. This review covers Chi-Square tests for categorical data and linear regression inference, including test statistics, hypotheses, and step-by-step examples to strengthen your understanding before test day. This session walks through Chi-Square goodness of fit tests, tests for association and homogeneity, plus linear regression t-tests and confidence intervals. You'll see real examples like analyzing Skittles data and interpreting computer output. Perfect for last-minute review or reinforcing key inference concepts. ⏱️ TIMESTAMPS: 0:00 Introduction and Congratulations 0:32 Cramming Units 8 and 9 2:09 Giveaway Announcement 3:45 Chat Changes for Finale 4:47 Upcoming Events Overview 6:19 Chi-Square Distribution Focus 8:22 Categorical Data Expansion 10:28 Degrees of Freedom Explained 12:38 Key Distribution Differences 16:03 Types of Chi-Square Tests 19:09 Goodness of Fit Test 22:16 Test for Association 24:56 Test for Homogeneity 28:02 Hypotheses and Conditions 30:38 Performing Chi-Square Tests 34:24 Test Statistic Formula 35:57 Skittles Example Setup 38:03 Calculating Test Statistic 41:17 Interpreting Results 43:23 Linear Regression T-Test 45:27 Hypotheses for Slope 46:29 Computer Output Analysis 49:50 R-Squared Interpretation 52:59 P-Value and Correlation 56:11 T-Interval for Slope 1:00:21 Key Takeaways Summary 1:02:28 Upcoming Practice Sessions 📊 WHAT YOU'LL LEARN: • Chi-Square distribution and degrees of freedom • Goodness of fit, association, and homogeneity tests • How to set up hypotheses and check conditions • Calculating and interpreting Chi-Square test statistics • Linear regression inference and slope tests • Reading computer output and understanding p-values • Confidence intervals for regression slopes 👍 SUBSCRIBE for more AP Statistics exam prep and study sessions throughout the year! 📚 STUDY AP STATS WITH FIVEABLE: Study guides, practice questions, and exam prep for AP Statistics. 📖 Study Guides: https://fiveable.me/ap-stats ✏️ Practice Questions: https://fiveable.me/guided-practice/a... #APStatistics #APStats #APExamPrep