[Bug]: Capability - Non normal data - Parameter estimation #4142

JASP Version

0.96.0

Commit ID

No response

JASP Module

Quality Control

What analysis are you seeing the problem on?

Capability

What OS are you seeing the problem on?

Windows 11

Bug Description

When calculating capability for non-normal data the estimation of the parameters for e.g. Weibull distribution does not align with the Maximum likelihood estimates using the Distributions tool. Comparing with other applications (Minitab, R) the estimated parameters from Distributions are correct. How are the parameters estimated in Quality Control - Capability, and how to use the maximum likelihood approach?

Expected Behaviour

The estimated parameters should match those in the Distributions module based on ML.

Steps to Reproduce

happens all the time

Log (if any)

No response

More Debug Information

No response

Final Checklist

• I have included a screenshot showcasing the issue, if possible.
• I have included a JASP file (zipped) or data file that causes the crash/bug, if applicable.
• I have accurately described the bug, and steps to reproduce it.