Mathematics, 18.12.2019 05:31, hooplikeapro
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 australians.
a，show the sampling distribution of, the proportion of australians who are smokers.
b，what is the probability the sample proportion will be within ±0.04 of the population proportion?
c，what is the probability the sample proportion will be within ±0.02 of the population proportion?
Answers: 1
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Fifteen percent of australians smoke. by introducing tough laws banning brand labels on cigarette pa...
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