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August 23, 2014

Homework Help: Statistics

Posted by George on Wednesday, May 5, 2010 at 7:02pm.

In a survey of 1037 adults, ages 65 and over, 643 were concerned about getting the flu.

a) Find the point estimate for the population proportion , p , of those concerned about getting the flu.

b) Construct a 90% Confidence Interval for the population proportion.

c) How big a sample size would be needed to allow for a 2% margin of error?

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