Calculating Minimum Sample Size Confidence Interval. A sample of size n16448 will ensure that a 95 confidence interval estimate of the prevalence of breast cancer is within 010 or to within 10 women per 10000 of its true value. If we are talking confidence intervals the formula is n sample size 196 sME2 Need to know the standard deviation s and the required margin of error ME to answer the question though.
The sample size decreased which is what you should expect. When the percentage is smaller youre closer to the exact answer at a given confidence level. Determine the confidence level.
When the percentage is smaller youre closer to the exact answer at a given confidence level.
This calculator finds the minimum sample size required to estimate a population proportion p within a specified margin of error. The sample size is 752. Answer to What is the minimum sample size for a 72 confidence interval estimate of the population mean with a margin of error of. The sample size is computed as follows.
