1. To assess the opinion of students at the Ohio State University about campus safety, a reporter interviews 15 students he meets walking on the campus late at night who are willing to give their opinion.

1. To assess the opinion of students at the Ohio State University about campus safety, a reporter interviews 15 students he meets walking on the campus late at night who are willing to give their opinion.

• What is the population of interest?
• What’s the sample?
• Is the sample representative of the population?
• Will the results be reliable?

2. An SRS of 1,200 adult Americans is selected and asked: “In light of the huge national deficit, should the government at this time spend additional money to fix the deficiencies of the Affordable Care Act?“ Nineteen percent of those responding answered yes.

 What can you say about this survey?

• The sampling process is sound, but the wording is biased. The results probably understate the percentage of people who do favor fixing the deficiencies of the Affordable Care Act.