The Gallup poll in Example 6 reported that during March

The Gallup poll in Example 6 reported that during March 2011, 60% of Americans favored offshore drilling as a means of reducing U.S. dependence on foreign oil. The poll was based on the responses of n = 1021 individuals, and resulted in a margin of error of approximately 3%. Find the approximate margin of error had the poll been based on a sample of size (a) n = 100, (b) n = 400, and (c) n = 1600. Explain how the margin of error changes as n increases.

Members

  • Access to 2 Million+ Textbook solutions
  • Ask any question from 24/7 available
    Tutors
$9.99
VIEW SOLUTION

OR

Non-Members

Get help from Statistics Tutors
Ask questions directly from Qualified Online Statistics Tutors .
Best for online homework assistance.