In statistics, the margin of error (e) is defined as the radius of the confidence interval. It is an absolute quantity. Calculation of margin of error varies for different confidence percentage. When a population is not completely sampled, margin of error calculation is needed. Find the e value using this calculator based on the standard error of a sample and the critical value.
If critical value is 10 and SE is 3,
= 10 x 3
Margin of error is 30