Answer :
The answer to the given question is Sample Selection Error. Unlisted phone numbers that do not appear in the phone book create sample selection error in a research study that calls people listed in the phone book.
What is sampling error?
A sampling error is a statistical error that happens when an analyst does not determine a sample that represents the whole population of data. As a consequence, the results found in the sample do not represent the results that would be acquired from the whole population.
When a research study pulls a random sample of people from a phone book and that sample does not contain people with unlisted numbers, we can say that the sample contains sample selection error.
Learn more about sampling error at: https://brainly.com/question/13286220
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