View Policies Show Attempt History Current Attempt in Progress Your answer is incorrect. Using the Formula $n = \frac{1}{ME^2}$ to Determine Sample Size When we want 95% confidence and use the conservative estimate of $p = 0.5$, we can use the simple formula $n = \frac{1}{ME^2}$ to roughly determine the sample size needed for a given margin of error ME. Use this formula to determine the sample size needed for a margin of error of 0.005. Enter the exact answer. n =
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Using the Formula to Determine Sample Size When we want 95% confidence and use the conservative estimate of p = 0.5, we can use the simple formula n = 1 / ME^2 to roughly determine the sample size needed for a given margin of error ME. Use this formula to determine the sample size needed for a margin of error of 0.01. Enter the exact answer:
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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 0.4. Round your answer up to the nearest integer.
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Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best point estimate for p, the margin of error, and the confidence interval. Assume the results come from a random sample. A 95% confidence interval for p given that p̂ = 0.39 and n = 450. Round your answer for the best point estimate to two decimal places, and your answers for the margin of error and the confidence interval to three decimal places. Best point estimate = Margin of error = ± The 95% confidence interval is: to
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