Sample Size for Estimate of Mean Calculator

z =

σ =

E =

**Note- Enter numbers without commas



  n =

Sample Size for Estimate of Mean Formula

n =


z = Confidence level
σ = Standard deviation
E = Margin of error of the confidence interval estimate of μ

Additional Pages

We offer an easy to use standard deviation calculator with formula, examples, explanation and other related information. Our site is for students, business professionals, or personal use. Input is always welcome (no pun intended!), contact us and we will review your suggestions.