AP Statistics CRAM – Confidence Intervals & Inference

Learn statistical inference and confidence intervals for AP Statistics with this focused cram review. We break down sampling distributions, margin of error, hypothesis testing procedures, and walk through a real 2017 AP exam question to help you prepare for test day. This 48-minute review session covers the key inference concepts you need to understand: population vs sample, confidence level interpretation, the three critical conditions for inference, and how to use your calculator efficiently. Perfect for strengthening your understanding of one of the most tested topics on the AP Stats exam. ⏱️ TIMESTAMPS: 0:00 Introduction to Inference 0:38 Focus on Confidence Intervals 1:40 Upcoming Events Overview 2:41 Stream Content Outline 4:16 Defining Statistical Inference 6:08 Population vs Sample Explanation 7:41 Confidence Intervals for Prediction 8:43 Sample Proportion Estimation 9:45 Shellfish Allergy Example 10:48 Margin of Error Concept 12:55 Confidence Level Interpretation 14:29 95% Confidence Meaning 15:32 Interval Width Factors 17:39 Margin vs Standard Error 18:42 Confidence Interval Formula 20:48 SPDC Inference Steps 23:55 Planning Conditions Check 26:33 Three Inference Conditions 30:44 Conditions and Formula Link 31:15 Performing Calculations 35:39 Calculator Function Selection 37:46 Concluding Interpretations 38:47 2017 AP Example Introduction 39:50 Constructing Confidence Interval 42:28 Interval Interpretation 43:00 Cost Estimate Calculation 44:01 Minimizing Margin of Error 45:34 Sample Size Determination 46:39 Key Non-Negotiables Summary 47:44 Closing and Discord Invite 📊 WHAT YOU'LL LEARN: • Statistical inference fundamentals • How to construct and interpret confidence intervals • Margin of error vs standard error • The three conditions for valid inference • SPDC framework for solving problems • Calculator techniques for efficiency • Sample size determination methods • Real AP exam question walkthrough 💙 SUBSCRIBE for more AP Stats review sessions and exam prep strategies! 📚 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