Units 6-9: Inference (College Board AP® Statistics) Get ready for your College Board AP® Statistics exams with our revision resources. Find everything you need to revise this topic, so you can go into your exam confident and prepared. Teachers and examiners write all our resources, and they’re designed specifically for each exam board. We regularly update them to match the latest syllabus, so you’ll only revise the most accurate, up-to-date information. Explore the collection below to get started.
Units 6-9: Inference Revision Notes Introduction to Inference Tails on a Normal Distribution Introduction to Hypothesis Testing Introduction to Confidence Intervals Inference for Proportions Hypothesis Tests for Population Proportions Confidence Intervals for Population Proportions Hypothesis Tests for Differences in Population Proportions Confidence Intervals for Differences in Population Proportions Inference for Means The t-distribution Hypothesis Tests for Population Means Confidence Intervals for Population Means Hypothesis Tests for Differences in Population Means Confidence Intervals for Differences in Population Means t-scores versus z-scores Hypothesis Tests for Differences in Matched Pairs Confidence Intervals for Differences in Matched Pairs Goodness of Fit (Chi-Square) The Chi-Square Distribution Hypothesis Tests for Goodness of Fit Independence & Homogeneity (Chi-Square) Tests for Independence Tests for Homogeneity Inference for Regression Slopes Sampling Distributions for Sample Slopes Hypothesis Tests for Slopes of Regression Lines Confidence Intervals for Slopes of Regression Lines Errors in Hypothesis Tests Type I & Type II Errors Probabilities of Errors Power of a Test Units 6-9: Inference Exam Questions Introduction to Inference Multiple Choice Questions Inference for Proportions Multiple Choice Questions Inference for Means Multiple Choice Questions Goodness of Fit (Chi-Square) Multiple Choice Questions Independence & Homogeneity (Chi-Square) Multiple Choice Questions Inference for Regression Slopes Multiple Choice Questions Errors in Hypothesis Tests Multiple Choice Questions College Board AP® Statistics Past Papers