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August 4, 2015

Homework Help: statistics

Posted by Chris Liberty on Friday, October 4, 2013 at 12:30pm.

2. The National polling organization conducted a phone survey of 850 American adults on what they considered to be the most serious problem facing nation’s public schools; 30% said violence. This sample percent is an estimate of the percent of all adults who think that violence is the school’s most serious problem. At 95% level, what is your range of confidence on the percentage of the entire population that considers the violence as the most serious problem in public schools?

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