User Community
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • Instantly extract effect sizes, F-ratios, and FDR-adjusted p-values from your models with the Calculate Effects Sizes extension, available now in the JMP Marketplace!
  • New to JMP? Join us Sept. 23-24 for the Early User Edition of Discovery Summit, tailor-made for new users. Register now for free!
  • See how to use the JMP Marketplace – Free tools to expand JMP capabilities. Register. July 10, 2 pm US Eastern Time.

JMP Knowledge Base

Choose Language Hide Translation Bar
Incorrect values are given with the Confidence Interval for One Proportion calculator in JMP® software
Created: Nov 30, 2022 02:34 PM  |  Last Modified: Dec 1, 2022 3:34 PM

In certain conditions, the Confidence Interval for One Proportion calculator, available in the JMP® Sample Data Index, gives incorrect confidence intervals. These conditions are when the Number of Successes (x) equals the Sample Size (n), and when the Number of Successes equals 0. The alpha level should be divided by 2 in these cases, so, to get the correct calculations, change the Confidence Level value to (1 - alpha/2) rather than (1 - alpha).

 

[Previously JMP Note 68507]

0 Kudos
Details
Operating System
macOS Windows
Reported Version
15.2
Fixed Version
17.1
Products JMP JMP Pro

Recommended Articles