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Take a Test Secure https://www.math aspx?testld 154890884&centerwin; yes olcom/Student/PlayerTest Business Statistics Test Exam 1 Time Limit 01 3000 This Question: 1 pt This Test: 1 3 of 12 (0 complete) Identify which type of sampling is used random systematic, convenience, stratified or cluster To determine customer opinion of their pricing. Amtrak randomly selects 50 trains during a certain week and surveys al passengers on the trains Which type of sampling is used? O A. Systematic O Convenience Welcome to My

Explanation / Answer

Solution:- option D. cluster

Explanation:-

Cluster Sampling

Cluster sampling refers to a type of sampling method . With cluster sampling, the researcher divides the population into separate groups, called clusters. Then, a simple random sample of clusters is selected from the population. The researcher conducts his analysis on data from the sampled clusters.

Compared to simple random sampling and stratified sampling , cluster sampling has advantages and disadvantages. For example, given equal sample sizes, cluster sampling usually provides less precision than either simple random sampling or stratified sampling. On the other hand, if travel costs between clusters are high, cluster sampling may be more cost-effective than the other methods.

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