## Sample size calculator to estimate proportion

Sample size required to estimate proportion The formula to estimate the sample size required to estimate the proportion is $$n =p*(1-p)\bigg(\frac{z}{E}\bigg)^2$$ where, $p$ is the proportion of success, $z$ is the $Z_{\alpha/2}$ (critical value of $Z$), $E$ is the margin of error. Sample size calculator to estimate proportion Use this calculator to find …

## Sample size calculator to test hypothesis about mean

Sample size to test hypothesis about mean In inferential statistics, knowing how many samples to take from the population is extremely important. In this tutorial we will explore how to determine minimum sample size needed to estimate population mean with a given amount of error and desired confidence level. Sample size required to test hypothesis …

## Sample size calculator to estimate mean

Sample size to estimate mean In inferential statistics, knowing how many samples to take from the population is extremely important. In this tutorial we will explore how to determine minimum sample size needed to estimate population mean with a given amount of error and desired confidence level. Sample size to estimate mean The formula to …