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If you want to estimate the proportion of all RIT students who smoke within 0.05 with...

If you want to estimate the proportion of all RIT students who smoke within 0.05 with 90% confidence, what is the minimum sample size you will need?

a. 1562

b. 2033

c. 271

d. 549

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Answer #1

Answer: c. 271

Confidence interval for P = ( ľ F Ê CHÊ Margin of Error = P( 1 ) * 2012 { s use 8=0.5. it maximizes Ø 11-p) x = 0.10 n 0.05 =

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