Question

What sample size is needed to give a margin of error within ± 2.5% in estimating a population proportion with 99% confidence? We estimate that the population proportion is about 0.3 . Round your answer up to the nearest integer. Sample size =

          What sample size is needed to give a margin of error within ± 2.5% in estimating a population proportion with 99% confidence? We estimate that the population proportion is about 0.3 .

Round your answer up to the nearest integer.

Sample size =

What sample size is needed to give a margin of error within ± 2.5% in estimating a population proportion with 99% confidence? We estimate that the population proportion is about 0.3 .

Round your answer up to the nearest integer.

Sample size =

Added by Julio G.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Prabhakar Kumar

08/19/2023

Step 1

5% - Confidence level = 99% - Estimated population proportion (p hat) = 0.3 - Formula for sample size calculation: \( n = \left( \frac{{z^2 \cdot p \cdot (1-p)}}{{E^2}} \right) \) Show more…

Show all steps

Thanks for your feedback!

What sample size is needed to give a margin of error within +2.5% in estimating a population proportion with 99% confidence? We estimate that the population proportion is about 0.3. Round your answer up to the nearest integer.