the survey has bias a Determine the type of bias b Suggest

- the survey has bias.

(a) Determine the type of bias.

(b) Suggest a remedy.

To determine the public’s opinion of the police department, the police chief obtains a cluster sample of 15 census tracts within his jurisdiction and samples all households in the randomly selected tracts. Uniformed police officers go door to door to conduct the survey.

Solution

The bias exists in the police officers conducting the survey. They are conducting an opinion survey while being uniformed.

The remedy would be to have people conducting the survey that have no affiliation with the police department.