1. Define the following terms in your own words.
• Population
• Sample
• Bias
• Design
• Response bias
2. Define and provide an example for each design method.
• Simple random sampling
• Systematic sampling
• Stratified sampling
• Cluster sampling
3. Choose one design method from the list above. Using your example, make a list of 2-3 advantages and 2-3 disadvantages for using the method.
4. The name of each student in a class is written on a separate card. The cards are placed in a bag. Three names are picked from the bag. Identify which type of sampling is used and why.
5. A phone company obtains an alphabetical list of names of homeowners in a city. They select every 25th person from the list until a sample of 100 is obtained. They then call these 100 people to advertise their services. Does this sampling plan result in a random sample? What about a simple random sample? Explain why or why not.