What’s A One Proportion Test?
The One Proportion test is a hypothesis test that can be used to determine whether a process is performing at the level of an established standard. It provides a way to determine if there is a statistically significant difference between the standard and a particular data set or whether the difference is due to random chance.
An example would be testing if a vendor that has guaranteed 48 hour delivery is performing as promised.
Learn more about One Proportion Tests in Analyze Phase, Module 4.2.1 of Black Belt Training.
How To Run A One Proportion Test In SigmaXL
1. Select Raw Data:
2. Data Summary:
3. Go to Statistical Tools > Basic Statistical Templates > 1 Proportion Test & Confidence Interval: