Question

The Denver Police Department Wants to know if Hispanic residents of Denver believe that the police use racial profiling when making traffic stops. A sociologist prepares several questions about the police. The police department chooses an SRS of 200 mailing addresses in predominantly Hispanic neighborhoods and sends a uniform Hispanic police officer to each address to ask the questions of an adult living there. What are the population and the sample? Why are the results likely to be biased even though the sample is an SRS?

Answer 1

The population is the Hispanic community of Denver. The sample would be the 200 people selected.

The results are likely to still be biased because the 200 people in the sample are all Hispanic.