A simple random sample of 1000 American adults found that the average number of hours spent watching television during a typical week was 13.8. A simple random sample of 500 Canadians yielded an average of 12.5 hours per week of television viewing. Assume that the American and Canadian distributions for weekly television viewing times have the same standard deviations. The sampling variability associated with the sample means (described above) is

Question

Accepted Answer

larger for the sample of Canadians because the sample size is smaller.

Answer

larger for the sample of Canadians because Canadian citizens are more widely dispersed throughout their country than American citizens are in the United States. Hence, Canadians have more variable views.

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Answer

smaller for the sample of Canadians because the population of Canada is less than half that of the United States.

Answer

smaller for the sample of Canadians, because the average for the Canadians is smaller.

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A simple random sample of 1000 American adults found that the average number of ...

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