A company with offices in five different countries is interested in estimating the proportion of its employees in favor of ban- ning smoking on the office premises. It is known that the views of people from different countries on issues like smoking tend to vary due to the influence of different local social structures. Which of the following is an appropriate sampling technique to use in this situation, and why?
A.
Stratified sample, because the population is divided into five strata-namely, five offices in five different countries
B.
Cluster sample, because the population is divided into five clusters-namely, five offices in five different countries
C.
Simple random sample, because this is the simplest sampling method
D.
Simple random sample, because this is the only method that gives unbiased results
E.
Simple random sample, because this is the only method for which inferential techniques are available
Exam No：AP Statistics Problem Set 11 Year：2024 Question No：35
Answer:
A
Knowledge points:
3.2 Introduction to Planning a Study
3.3 Random Sampling and Data Collection
3.4 Potential Problems with Sampling
Solution:
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