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Questions and Answers
In non-probability sampling it is not possible to know the probability of the elements that are going to form part of the sample prior.
In non-probability sampling it is not possible to know the probability of the elements that are going to form part of the sample prior.
True
The estimator or statistic is the value of the parameter calculated on a sample of the population.
The estimator or statistic is the value of the parameter calculated on a sample of the population.
True
In quota sampling, the reliability of the sample is conditioned by the researcher's knowledge of the population.
In quota sampling, the reliability of the sample is conditioned by the researcher's knowledge of the population.
True
Convenience sampling is often used when you want to evaluate the pilot questionnaire.
Convenience sampling is often used when you want to evaluate the pilot questionnaire.
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The sampling size for estimating means and totals is always larger than for estimating proportions.
The sampling size for estimating means and totals is always larger than for estimating proportions.
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The fieldwork includes sampling, questionnaire completion, and identification of information supports.
The fieldwork includes sampling, questionnaire completion, and identification of information supports.
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The selection of interviews is based on physical appearance, communication skills, and experience only.
The selection of interviews is based on physical appearance, communication skills, and experience only.
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When the sampling method used in the fieldwork is quota sampling, the basic analysis stage is unnecessary.
When the sampling method used in the fieldwork is quota sampling, the basic analysis stage is unnecessary.
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Sample framework is each of the origins of the information or issues to measure.
Sample framework is each of the origins of the information or issues to measure.
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Sample variability or random error: the different values of the estimators calculated using different samples.
Sample variability or random error: the different values of the estimators calculated using different samples.
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Sample variability or random error is not smaller for bigger samples.
Sample variability or random error is not smaller for bigger samples.
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Sample friction is the percentage of the population that is part of the sample.
Sample friction is the percentage of the population that is part of the sample.
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Simple random sampling requires to know all the individuals of the population and the size of a representative sample.
Simple random sampling requires to know all the individuals of the population and the size of a representative sample.
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Cluster sampling involves dividing the population into subpopulations that may differ in important ways.
Cluster sampling involves dividing the population into subpopulations that may differ in important ways.
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Focus group studies use judgemental sampling rather than probability sampling.
Focus group studies use judgemental sampling rather than probability sampling.
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To supervise fieldwork it is possible to choose randomly some of the questionnaires and repeat the survey to the same respondents.
To supervise fieldwork it is possible to choose randomly some of the questionnaires and repeat the survey to the same respondents.
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