This comprehensive quiz covers all 12 lessons of Statistical Analysis. It includes multiple choice questions drawn from the entire module pool, plus short answer questions testing your ability to apply statistical reasoning. Aim for 80% or higher to demonstrate mastery.
15 questions drawn from all 12 lessons - feedback shown immediately
Short Answer
1. A city considers banning cars from the CBD to reduce pollution. Data shows correlation between car density and air quality. (a) Why is correlation alone insufficient to justify the ban? (b) Identify three lurking variables. (c) Design a study for stronger evidence. (d) Discuss statistical vs practical significance. 4 MARKS
2. School Alpha: mean=80, median=82, SD=8, n=150. School Beta: mean=78, median=75, SD=15, n=150. (a) Compare distributions. (b) Evaluate arguments for each school. (c) What additional information would help? (d) Which school for risk-averse vs risk-tolerant students? 4 MARKS
Tick when you have finished the quiz and reviewed all answers.