Question

Many colleges are moving toward coed dormitories. A Residential Life director plans to sample student attitudes toward this arrangement. He randomly selects three of the 12 dorms and sends a questionnaire to all residents living in them. Which of the following best describes the director's sampling plan? (A) A convenience sample (B) A simple random sample (C) A stratified random sample (D) A cluster sample (E) A systematic sample

Name: Problem 4, Chapter 3: AP Statistics with 6 Practice Tests
Uploaded: 2021-05-04T22:32:08-08:00
Duration: 1 min 27 s
Channel: Jerrah Biggerstaff

   Many colleges are moving toward coed dormitories. A Residential Life director plans to sample student attitudes toward this arrangement. He randomly selects three of the 12 dorms and sends a questionnaire to all residents living in
them. Which of the following best describes the director's sampling plan?
(A) A convenience sample
(B) A simple random sample
(C) A stratified random sample
(D) A cluster sample
(E) A systematic sample

AP Statistics with 6 Practice Tests

Martin Sternstein 11th Edition

Chapter 3, Problem 4

Instant Answer

Solved by Expert Jerrah Biggerstaff

05/04/2021

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He does this by randomly selecting three of the 12 dorms and sends a questionnaire to all residents living in them. Show more…

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Many colleges are moving toward coed dormitories. A Residential Life director plans to sample student attitudes toward this arrangement. He randomly selects three of the 12 dorms and sends a questionnaire to all residents living in them. Which of the following best describes the director's sampling plan? (A) A convenience sample (B) A simple random sample (C) A stratified random sample (D) A cluster sample (E) A systematic sample

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Key Concepts

Cluster Sampling

Cluster sampling is a technique where the population is naturally divided into groups or clusters, and a random sample of these clusters is selected. Once clusters are chosen, all individuals within the selected clusters are surveyed. This method is especially useful when the population is large and spread out, or when compiling a complete list of all members is impractical.

Stratified Random Sampling

Stratified random sampling involves dividing the population into homogenous subgroups, called strata, based on certain characteristics, and then randomly selecting samples from each stratum. This method ensures that each subgroup is represented proportionally in the sample, which is different from cluster sampling where entire groups are selected randomly.

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