Sample size calculator (target margin of error) (embed) | StatsLearn

Confidence level (%)Target margin of error (as a proportion)Planning value (p*)0.5 gives the largest (safest) n.

required sample size

1068

Steps

1.z* for 95% confidence = 1.96
2.n = (z*/ME)² x p*(1 - p*) = (1.96/0.03)² x 0.5 x 0.5
3.n = 1067.07
4.always round UP: n = 1068

Sample size calculator (target margin of error) · free from StatsLearn