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Construct a confidence interval estimate of the population proportion p with n = 1200, x =...

Construct a confidence interval estimate of the population proportion p with

n = 1200, x = 800, alpha = 0.01

Math   Statistics-And-Probability   
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Answer #1

Given that, n = 1200 and x = 800

=> sample proportion = 800/1200 = 0.6667

critical value at significance level of alpha = 0.01 is,

The 99% confidence interval for the population proportion is,

Therefore, required confidence interval is, (0.6317, 0.7017)

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