How do modern-day scientific polls achieve a random sample? Average Americans are stopped at malls. Canvassers go door-to-door to ask questions. Phone numbers are dialed at random. Polls are conducted exclusively online.
Added by Alexandria A.
Step 1
Step 1: Identify the target population for the poll, which could include all eligible voters, residents of a specific area, or a demographic group. Show more…
Show all steps
Your feedback will help us improve your experience
James Kiss and 97 other Microeconomics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Many polls use random digit dialing (RDD) to obtain a sample, which means a computer randomly generates phone numbers of landlines and cell phones. What is the frame for this type of sampling? Who would be excluded from the survey and how might this affect the results of the survey?
Data Collection
Bias in Sampling
Identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster. In a Gallup poll, 1003 adults were called after their telephone numbers were randomly generated by a computer, and $20 \%$ of them said that they get news on the Internet every day.
Introduction to Statistics
Collecting Sample Data
Identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster. In a Kelton Research poll, 1114 Americans 18 years of age or older were called after their telephone numbers were randomly generated by a computer, and $36 \%$ of the respondents said that they believe in the existence of UFOs.
Recommended Textbooks
Principles of Economics
Principles of Microeconomics for AP® Courses
Economics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD