35 multiple-choice questions in College Board exam style. Each has four choices and a full explanation of why each option is right or wrong.
State parameters, check conditions, then compute. Random, 10%, and Large Counts must hold before any interval or test.
Interpret in context. Intervals are about the population parameter; a p-value assumes H₀ is true.
Use p₀ in a test's standard error and p̂ in an interval's. Don't mix them up.
Never accept H₀ (fail to reject it) and read the explanations even when you got it right.