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April 19, 2015

Homework Help: statistics

Posted by ali awan on Wednesday, May 8, 2013 at 3:40pm.

Using the results of a Newsweek poll conducted in March of 2009, a 90% confidence interval on the proportion of adult Americans who have a favorable opinion of Barack Obama is given by (0.699, 0.741). What is the margin of error?

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