Finding Confidence Interval for Population Proportion (p)

Input p̂, n, and Level of Confidence:

Sample Size: n =
Sample Proportion: p̂ =
Level of Confidence (%) =

          

Confidence Interval Formula:
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Note: The procedure below is used:
a) if sample size (n) is less than or equal to 5% of the population size (N); and
b) n(p̂)(1 - p̂) ≥ 10