Sample Size for Descriptive Study to Estimate a Proportion

Sample Size -- Confidence Interval For a Proportion

Instructions: Enter parameters in the Red cells. Answer will appear in the blue cell.

P = Expected Proportion
W = Total Width of Confidence Interval

Confidence Level (e.g., 0.95)	P	W

Z-Alpha
0.00
N	0

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Software utilities by Michael Kohn (mkohn@mkanders.com) and Mike Jarrett (mike.jarrett@quesgen.com)

Disclaimer: Software is provided on an as-is basis and no warrany is made of any kind. Calculations are believed accurate but should be verified by the user

Sample Size for Descriptive Study to Estimate a Proportion