What Is The Minimum Sample Size Needed For A 99 Confidence Interval. Estimate the minimum sample size needed to form a confidence interval for the mean of a population having the standard deviation shown meeting the criteria given. If you want the margin of error to be no more than 10 what is the minimum sample size that is needed.
How to Determine the Minimum Size Needed for a Statistical. Plug in your Z-score standard of deviation and confidence interval into the sample size calculator or use this sample size formula to work it out yourself. Proportion with 90 confidence.
This sample size calculator is for the population proportion.
B The sample mean is 28 milligrams. Answer to What is the minimal sample size needed for a 99 confidence interval to have a maximal margin of error of 009 a if a. Setting the Consumers Risk β at 005 which results in a 95 confidence level. If you want to find instead a confidence interval for the mean please use this confidence interval calculator.
