A
Anatta
Hi all,
I need help from MSA experts.
One of our engineers did an GR&R study. The spec requirement for the test process is only 2 decimal points and the tester is giving reading on 3 decimal points, which is fullfill the rule of thumb of 1/10.
Porblem is, when doing linerity and bias study, the reference value is 0.20 and the tester is giving out reading of 0.199 for a few points and yet it fails bias study. Sounds like there's no room for tolerence and there's no way to improve the testers.
Also, the slope is only 0.00002774 and yet the p value is 0.034, which shows there's a significant slope that contribute to failing linearity study. I am using Minitab which computes using the AIAG method, can someone advice how should we improve from here or is there anyway we can accept the MSA study?
Attached is the MInitab project output pasted inside the excal file and the raw data.
Please enlighten. :truce:
I need help from MSA experts.
One of our engineers did an GR&R study. The spec requirement for the test process is only 2 decimal points and the tester is giving reading on 3 decimal points, which is fullfill the rule of thumb of 1/10.
Porblem is, when doing linerity and bias study, the reference value is 0.20 and the tester is giving out reading of 0.199 for a few points and yet it fails bias study. Sounds like there's no room for tolerence and there's no way to improve the testers.
Also, the slope is only 0.00002774 and yet the p value is 0.034, which shows there's a significant slope that contribute to failing linearity study. I am using Minitab which computes using the AIAG method, can someone advice how should we improve from here or is there anyway we can accept the MSA study?
Attached is the MInitab project output pasted inside the excal file and the raw data.
Please enlighten. :truce: