Across
- 5. a subset of a pop. examined to learn about the pop. as a whole
- 13. numerically valued attribute of a model for pop. can be estimated from sampled data
- 14. individual is given fair, random chance of selection
- 16. population is divided into several subpopulations and then sampled
- 19. statistics computed from it accurately reflect the corresponding population parameters.
- 20. a study that asks questions to some of the pop. to learn about pop. as whole
- 21. sample that consists of whole pop.
Down
- 1. small trial run to check clarity of questions
- 2. any systematic failure of a sampling method
- 3. bias introduced to a sample when individuals can choose whether or not to take the survey
- 4. number of individuals in a sample
- 6. individuals who are conveniently available
- 7. natural tendency of randomly drawn samples to differ
- 8. sampling schemes that combine several methods
- 9. bias introduced when a large fraction of those sampled fails to respond, those who respond don't represent pop. as a whole
- 10. list of individuals from whom the sample is drawn
- 11. sample drawn by selecting individuals systematically
- 12. anything in a survey design that influences responses
- 15. sampling scheme that biases sample in a way that gives half the pop. less representation
- 17. entire group of individuals being studied
- 18. clusters are chosen at random typically for convenience or practicality