A telephone poll of 1,000 adult Americans was reported in an issue of Time Magazine. One of the questions asked was "What is the main problem facing the country?" Twenty percent answered "crime." We are interested in the population proportion of adult Americans who feel that crime is the main problem.
- Define the random variables
- Which distribution should you use for this problem? Explain your choice.
- Construct a 95% confidence interval for the population proportion of adult Americans who feel that crime is the main problem.
- Calculate the error bound.