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Stats:CH12 vocab
vocab words
| Question | Answer |
|---|---|
| randomization | the best defense against bias, in which each person is given a fair random chance of chance of selection |
| representative | the situation in which the statistics calculated from a sample accurately reflect the corresponding population parameters |
| voluntary response bias | bias introduced to a sample when individuals can choose whether or not to respond |
| simple random sample | a sample in which each set of elements in the population has an equal chance of selection |
| statistic, sample statistic | values calculated for sample data |
| stratified random sample | a sampling design in which the population divided into several subpopulations and random samples are then drawn from each subpopulation |
| bias | any systematic failure of a sampling method to represent its population |
| undercoverage | a form of bias introduced when one part of the population has less representation in the sample than in the original populations |
| multistage sample | sampling schemes that combine several sampling methods |
| population | the entire group of individuals in a sample |
| convenience sample | a sample consisting of individuals who are easily accessible |
| response bias | anything in a survey that influences responses |
| matching | any attempt to force a sample to resemble specified attributes of a population |
| sampling frame | a list of individuals from whom the sample is drawn |
| sample | a subset of a population, examined in hope of learning about the population |
| systematic sample | a sample dram by selecting individuals systematically from the sampling frame |
| population parameter | a numerically valued attribute of a model for a population |
| sample survey | a study that asks questions of a sample drawn from some population in the hope of learning something about the entire population |
| sampling variability | the natural tendency of randomly drawn samples to differ, one from another |
| nonresponse bias | bias introduced to a sample when a large fraction of those sampled do not respond |
| cluster sample | a sampling design in which entire groups are chosen at random |
| census | a sample that consists of the entire population |
| sample size | the number of individuals in a sample |
Created by:
britlee14
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