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a sample of 80 results in 30 successes. a) calculate the point estimate for the population proportion of successes. (round answer to 3 decimal places)

a sample of 80 results in 30 successes.

a) calculate the point estimate for the population proportion of successes. (round answer to 3 decimal places)

b) construct 90% and 99% confidence intervals for the population proportion. (round to 3 decimal places)

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