Question

The Voice of the People poll asks a random sample of citizens from different countries around the world their opinion about global issues. Included in the list of questions is whether they feel that globalization helps their country. The reported results were combined by regions. In the most recent poll, 74% of Africans felt globalization helps their country, whereas 38% of North Americans believe it helps their country. (a) Identify the samples and the populations. (b) Are these percentages sample statistics or population parameters? Explain your answer.

Answer 1

a)

the samples are people are from two countries.

i) Africans

ii) North Americans

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Population is countries around the world

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b)

74% of Africans felt globalization helps their country, whereas 38% of North Americans believe it helps their country.

The above two countries are samples and sample percentage for Africans, p1 = 0.74 and for North Americans ,p2 = 0.38 resp.

so, these percentages are sample statistics because they are obtained from sample countries.