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A simple random sample of 900 individuals provides 250 Yes responses. a. What is the point estimate of the proportion of the
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we have, na 900 (sample size) ( Twose who na 250 provide yes respouse aj Point, Estimate of population P = x proportion isat 95% confidene level Za12 = 1.96 CI = 1 Zulu P Line -0.278 € 1.96 (0:278) (1-0,278) 900 = 0,278 + 0.029 СТ FO: 249, 0-307)

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