Surveys have become an integral part of our lives. Because it is so important that every citizen has the ability to interpret survey results, surveys are the focus of this project.

The Pew Research Center recently conducted a survey of 1007 U.S. adults and found that 85% of those surveyed know what Twitter is.

Analyzing the Data
1. Use the survey results to construct a 95% confidence interval estimate of the percentage of all adults who know what Twitter is.
2. Identify the margin of error for this survey.
3. Explain why it would or would not be okay for a newspaper to make this statement: “Based on results from a recent survey, more than 3 out of 4 adults know what Twitter is.”
4. Assume that you are a newspaper reporter. Write a description of the survey results for your newspaper.
5. A common criticism of surveys is that they poll only a very small percentage of the population and therefore cannot be accurate. Is a sample of only 1007 adults taken from a population of all adults a sample size that is too small? Write a brief explanation of why the sample size of 1007 is or is not too small.
6. In reference to another survey, the president of a company wrote to the Associated Press about a nationwide survey of 1223 subjects. Here is what he wrote:

When you or anyone else attempts to tell me and my associates that 1223 persons account for our opinions and tastes here in America, I get mad as hell! How dare you! When you or anyone else tells me that 1223 people represent America, it is astounding and unfair and should be outlawed.

The writer of that letter then proceeds to claim that because the sample size of 1223 people represents 120 million people,] his single letter represents 98,000 (120 million divided by 1223) who share the same views. Do you agree or disagree with this claim? Write a response that either supports or refutes this claim.