Question: Telephone survey methods. In a study of the accuracy of telephone surveys, 720 people refused to respond when they were amoung the 1720 people included in the "standard" 5-day survey. In the same study, 429 people refused to respond when they were among the 1640 people included in the "rigorous" 8-week survey. Use a 0.01 significance level to test the claim that the refusal rate is lower with the rigorous survey. Does the rigorous survey appear to be more likely to produce accurate results.

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