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 Minitab
1. Select Raw Data:
2. Go to Stat > Basic Statistics > 1 Proportion:
3. Click on “Options”
4. Select the “Normal Approximation” listed below:
5. Click “OK”: