UTK Stat 201 Exam 2 Questions With Correct Answers

UTK Stat 201 Exam 2 Questions With
Correct Answers

Population - CORRECT ANSWER✔✔-an entire group of individual
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persons, objects, or items from which samples may be drawn
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Sample - CORRECT ANSWER✔✔-smaller group selected from the
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original population
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Who you want to ask - CORRECT ANSWER✔✔-population
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Who you can ask - CORRECT ANSWER✔✔-sample frame
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Sample Surveys - CORRECT ANSWER✔✔-designed to ask questions of a
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small group of people in the hope of learning something about the
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entire population
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Who you actually ask - CORRECT ANSWER✔✔-sample
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Sampling methods that tend to over- or under-emphasize some
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characteristics of the population - CORRECT ANSWER✔✔-Biased
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, Protects us from the influences of all the features of our population by
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making sure that, on average, the sample looks like the rest of the
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population - CORRECT ANSWER✔✔-Randomization
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The number of individuals in the sample - CORRECT ANSWER✔✔-
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sample size |




including everyone and then sampling the entire population - CORRECT
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ANSWER✔✔-census


A parameter used in a model for a population - CORRECT ANSWER✔✔-
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population parameter |




any summary found from the data - CORRECT ANSWER✔✔-sample
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statistic


Reduce sampling variability by identifying homogeneous subgroups and
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then randomly sampling within each - CORRECT ANSWER✔✔-Stratified
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samples


Randomly selecting among heterogeneous subgroups - CORRECT
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ANSWER✔✔-Cluster samples |