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Homework help? Please??

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mihanni21
 
Reply Tue 27 Mar, 2012 09:05 pm
How do I work this problem out???

16. In a study of accuracy of telephone surveys, 720 peoples among 1,720 refused to respond in a standard survey. In the same study 429 people among 1,640 refused to respond in a rigorous study. At the 99% confidence level test the claim that the refusal rate is lower is lower in the rigorous survey.
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