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A student organization is trying to decide whether or not offer more free movies on campus....

A student organization is trying to decide whether or not offer more free movies on campus. A random sample of students is about to be asked if they are in favor of more free movies on campus. What sample size would be needed to provide a margin of error of about 3%

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Answer #1

Here confidence interval is not given so let us take it 95% CI, so z value is 1.96 as P(-1.96<z<1.96)=0.95

Margin of Error is 0.03

Also p is not given so we will take p=0.5

So we will find n using formula of E

So

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