Bluman A.G. Elementary Statistics- A Step By Step Approach

Answers to Applying the Concepts 7513. Answers will vary. One possible answer is that it wouldbe difficult to not allow surveys based on anecdotalresponses to be published. At the same time, it wouldbe good for those publishing such survey results tocomment on the limitations of these surveys.4. We can get results from a representative sample thatoffer misleading information about the population.5. Answers will vary. One possible answer is thatmeasurement error is important in survey sampling inorder to give ranges for the population parameters thatare being investigated.Section 14–3 Simulations1. A simulation uses a probability experiment to mimic areal-life situation.2. Simulation techniques date back to ancient times.3. It is definitely cost-effective to run simulations forexpensive items such as airplanes and automobiles.4. Simulation testing is safer, faster, and less expensivethan many real-life testing situations.5. Computer simulation techniques were developed in themid-1940s.6. Answers will vary. One possible answer is that somesimulations are far less harmful than conducting anactual study on the real-life situation of interest.7. Answers will vary. Simulations could have possiblyprevented disasters such as the Hindenburg or the 1986Space Shuttle disaster. For example, data analysisafter the Space Shuttle disaster showed that there wasa decent chance that something would go wrong onthat flight. See http://history.nasa.gov/sts51l.html8. Simulation theory is based in probability theory.14–33