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The designers of a standardized test are interested in knowing how test takers perform. They decide to conduct an observation study at a testing facility. To avoid bias, they create a list of all test takers this week. Then, they randomly select 50 test takers from the list to observe.

In this situation, what does the list of test takers represent?

A. the population
B. a control group
C. the frame
D. a sample



Answer :

GinnyAnswer

Final answer:

The list of test takers represents the population, and selecting a random sample ensures equal representation for reliable results.


Explanation:

The list of test takers represents the population. In this scenario, the population is the entire group of individuals the designers of the standardized test are interested in studying, which in this case, are the test takers at the facility. The selection of 50 test takers from the list constitutes a sample, a subset representing the larger population.

Using a random sample ensures that every individual in the population has an equal chance of being selected, increasing the study's reliability and generalizability of results.


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