Question: Fifteen percent of Australians smoke By introducing tough laws banning

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 p, the sample proportion of Australians who are smokers.
b. What is the probability the sample proportion will be within ± .04 of the population proportion?
c. What is the probability the sample proportion will be within ± .02 of the population proportion?


View Solution:


Sale on SolutionInn
Sales2
Views359
Comments
  • CreatedFebruary 16, 2015
  • Files Included
Post your question
5000