Genetically modifi ed foods An article in the journal
Chapter 5, Problem 5.63(choose chapter or problem)
Genetically modifi ed foods An article in the journal Science looks at diff erences in attitudes toward genetically modifi ed foods in Europe and the United States. Th is calls for sample surveys. Th e European survey chose a sample of 1000 adults in each of 17 European countries. Heres part of the description: Th e Eurobarometer survey is a multistage, random-probability face-to-face sample survey.20 (a) What does multistage mean? (b) You can see that the fi rst stage was stratifi ed. What were the strata? (c) What does random-probability sample mean?
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