Question: You intend to estimate a population proportion with a confidence interval. The data suggests that the normal distribution is a reasonable approximation for the binomial

You intend to estimate a population proportion with a confidence interval. The data suggests that the normal distribution is a reasonable approximation for the binomial distribution in this case.

Find the critical value that corresponds to a confidence level of 99.9%.

(Report answer accurate to three decimal places with appropriate rounding.)

za/2= _____________

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