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10.04 Confidence intervals for sample proportions

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Outcomes

4.5.3.1

understand the concept of an interval estimate for a parameter associated with a random variable

4.5.3.2

use the approximate confidence interval [ ˆp-√(ˆp(1−ˆp)/n, ˆp+z√(ˆp(1−ˆp)/n), as an interval estimate for p, where z is the appropriate quantile for the standard normal distribution

4.5.3.3

define the approximate margin of error E=z√(ˆp (1−ˆp)/n and understand the trade-off between margin of error and level of confidence

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