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Definition
| We know when outcomes can happen, but cannot predict individual outcomes. Over the long haul, outcomes can have set percentages. |
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Definition
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| What do you put in a Scheme? |
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Definition
| single or double digits? Assign the digits. Ignore which numbers? |
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Definition
| When Do you stop each trial |
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Definition
| what is the outcome of the simulation |
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| State if numbers can be repeated in each trial |
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| "Based on our simulation we estimate" |
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| What to include in a simulation |
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Definition
| scheme, stopping rule, count, non-replacement |
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Term
| Describe a Voluntary Response |
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Definition
| People decide for themselves whether to participate or not. Not a good sampling option. (example= radio opinion) |
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Definition
| Take sample of individuals easiest to reach. not a good sampling option. |
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Definition
| Every member in the population has an equal chance of being selected. Every possible sample of that size is equally likely |
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Definition
| Subgroups of population appear in roughly the same percentage as in the sample. Perform an SRS with each subgroup |
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Term
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Definition
| First member of population is chosen by some random procedure, the rest according to some random pattern |
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Definition
| Split Population into similar parts. Randomly select one or more of the clusters for the samples |
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Definition
| Sampling schemes that combine two or more methods |
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Definition
| The tendency for results to favor systematically one outcome over the other |
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Definition
| Undercoverage, Voluntary Response Bias, Wording Bias, Response Bias |
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Definition
| Some Part of the Population is excluded |
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Definition
| People who feel more strongly are more likely to respond |
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Definition
| Wording of question influences the response in some systematic way |
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Definition
| Response is biased in some systematic way (may not want to offend the interviewer) |
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