(Answered) Fifteen percent of australians smoke by introducing tough

Statistics

Fifteen percent of Australians smoke. By introducing tough laws banning brand labels on cigarette packages, Australia hopes to reduce the percentage of people smoking to 10% by 2018 (Reuters website, October 23,2012). Answer the following questions based on a sample of 240 Australia.

What is the probability the sample proportion will be within ±0.04 of the population proportion.

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