If a research group plans to conduct a survey poll about an upcoming presidential election in the United States, what is the minimum percentage of all likely voters that will be needed to obtain an accurate estimation of voter opinion, assuming that a random sample is obtained?

Question

Quizplus · Accepted Answer

A random sample of about 1,000 to 1,500 people, which is much less than 2 percent of the total likely voters, is typically sufficient to obtain an accurate estimation of voter opinion in a large population like that of the United States.

If a Research Group Plans to Conduct a Survey Poll