Identify and explain a source of bias in the study described. Then suggest how the bias might have been avoided.
-You plan to conduct a survey to find the percentage of people in your town who favor a new swimming pool Being built at the high school. You obtain addresses from a list of property owners in the town and you mail a
Survey to 100 randomly selected people from the list.
A)The list of popery owners is clearly biased toward those who can afford to own property. Also, a mail survey will result in a self-selected sample. A better sampling method, such as simple random sampling,
Is needed.
B)The list of property owners is clearly biased toward those who have children. Also, a mail survey will result in a self-selected sample. A better sampling method, such as a voluntary response survey, is
Needed.

Question

Quizplus · Accepted Answer

The list of property owners is biased because it excludes those who do not own property, such as renters, who may have different views on the new swimming pool. Additionally, a mail survey may not reach or motivate everyone to respond, leading to a self-selected sample that may not represent the broader population. A more inclusive sampling method, like simple random sampling from a comprehensive list of residents, could help avoid these biases.

Identify and Explain a Source of Bias in the Study