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What kind of design ropers are using

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Reference no: EM131646869

Question: Roper. Through their Roper Reports Worldwide, GfK Roper conducts a global consumer survey to help multinational companies understand different consumer attitudes throughout the world. Within 30 countries, the researchers interview 1000 people aged 13-65. Their samples are designed so that they get 500 males and 500 females in each country. (www.gfkamerica.com)

a) Are they using a simple random sample? Explain.

b) What kind of design do you think they are using?

Reference no: EM131646869

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