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Unformatted text preview: for Proportion Calculate a 95% confidence interval for the following proportion of smokers = 0.457 Standard deviation = = 0.498 Standard Error = Confidence Interval = 0.457 ± 1.96*0.0842 =0.457 ± 0.165 = (0.292, 0.622) 248 . ) 457 . 1 ( 457 . ) ˆ 1 ( ˆ =× =π π 0842 . 35 498 . = Sample Size Calculation for Proportion Estimation Suppose that the population proportion should be within ± 0.10 from the sample proportion n = = 95 individuals n 498 . 96 . 1 1 . × = 2 ) 1 . 498 . 96 . 1 ( ×...
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 Summer '04
 Geinady
 Standard Deviation, Ash Genaidy

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