Assume that a sample is used to estimate a population

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Assume that a sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given statistics and confidence level.

a. n = 500, x = 220, 99% confidence

b. 90% confidence; the sample size is 1780, of which 35% are successes

8. Use the given sample data and confidence level to construct the confidence interval estimate of the population proportion p for each problem.

a. n = 2000, x = 400, 95% confidence

b. n = 5200, x = 4821, 99% confidence

Reference no: EM13635777

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