## Sample size to estimate mean

- STATISTICS

Sample size to estimate mean Use this calculator to find the minimum sample size required to estimate population mean $\mu$.
Sample Size to estimate mean Confidence Level ($1-\alpha$) Select 90% 95% 98% 99% Standard Deviation ($\sigma$) Margin of Error ($E$) Calculate Results Z value: Required Sample Size : ($n$) Sample size required to estimate mean The minimum sample size required to estimate the population mean $\mu$ is $$ \begin{aligned} n &= \bigg(\frac{z*\sigma}{E}\bigg)^2 \end{aligned} $$