Comparison of OpenEpi confidence intervals for a sample mean to other public software programs.

 

 

 

Sample size, selected percentile  (----% confidence interval)

 

Method

100, 50 (95%CI)

 

5, 50 (95%CI)

10, 40 (95%CI)

10, 40 (99.99%CI)

Confidence Interval (CI) based on Normal approximation

percentile (CI)

Percentile (CI)

percentile (CI)

percentile (CI)

OpenEpi

 

50.5 (40, 61)

3 (0.0, 5)

4 (1, 8)

4 (0, 10)

EpiInfo6@

(DOS version)

 

 

50.5 (40.7, 60.3)

3 (0.81, 5.19)

Not available

Not available

@ only 95% confidence interval for a Median is available.

 

EpiInfo6 (DOS version). Epidemiology program office, CDC. (EpiInfo software downloaded from ‘www.cdc.gov’).