Identify which of these types of sampling is​ used: random,​ systematic, convenience,​ stratified, or cluster. A market researcher has partitioned all residents of a certain region into categories of unemployed, employed full time, and employed part time. She is surveying 42 people from each category.

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2022-08-31

Identify which of these types of sampling is​ used: random,​ systematic, convenience,​ stratified, or cluster.
A market researcher has partitioned all residents of a certain region into categories of unemployed, employed full time, and employed part time. She is surveying 42 people from each category.

Answer & Explanation

Adam Bradley

Adam Bradley

Beginner2022-09-01Added 10 answers

Given a sampling procedure and we have to identify which sampling procedure is used.
In cluster sampling, we divide the whole population into K clusters such that all the sampling units should belong to one and only one cluster. And than we take a random sample of size n from each cluster.
this procedure of collecting samples is called cluster sampling.
Here the market researcher has partitioned all residents of a certain region into 3 clusters:
categories of unemployed, employed full time and employed part time. And than she takes a random sample of 42 people from each cluster.
So, here stratified sampling is used.

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