When the Yankelovich polling organization asked,6

“Should laws be passed to eliminate all possibilities of special interests giving huge sums of money to candidates?”

80% of the sample answered yes. When they posed the question “Should laws be passed to prohibit interest groups from contributing to campaigns, or do groups have a right to contribute to the candidate they support?” only 40% said yes. Explain what this example illustrates, and use your answer to differentiate between sampling error and response bias in survey results.