|
This thread is carried over and continued in the Current Elsmar Cove Forums 
|
|
|
This thread is carried over and continued in the Current Elsmar Cove Forums
|
The New Elsmar Cove Forums
|
 The New Elsmar Cove Forums
 Statistical Techniques and 6 Sigma
 stability studies
|
 UBBFriend: Email This Page to Someone! |
next newest topic | next oldest topic |
| Author | Topic: stability studies |
|
robert hollingsbee Lurker (<10 Posts) Posts: 1 |
posted 04 October 2000 10:08 AM
   
Hi, I'm new to the world of stability studies and i need some help understanding how to go about performing these. I have read a few books and they still confuse me I have a program that will calculate all of the percentages but i don't know what is considered as being acceptable ie: 80% ok/not ok what is the specific number related to acceptability. As well choosing your user groups and group size. I have tried a few different methods and have come up with some interesting numbers ie: 25%/400%/80000% just by manipulating data for these different results. If anyone could help me out i would be a very happy man. [email protected] ------------------ IP: Logged |
|
Marc Smith Cheech Wizard Posts: 4119 |
posted 17 October 2000 09:47 AM
Can anyone shed any light on this? I'd sure like to hear from someone with experience in stability. IP: Logged |
|
Al Dyer Forum Wizard Posts: 622 |
posted 17 October 2000 10:51 AM
Robert, A method that has proven helpful and cost effective: We use a simple X-R chart to monitor the stability of a gage. As long as you use the same standard (master)and perform the study on a timely basis the Cpk can be monitored over time. On a weekly basis we measure the standard five times and calculate an ongoing Cpk. This type of graphic presentation works for internal personnel and auditors. Over time we can determine if frequencies are adequate and if masters (standards) and/or gages are wearing. These records are reported as part of management review fed into a continuous improvement program. ASD... IP: Logged |
All times are Eastern Standard Time (USA) | next newest topic | next oldest topic |
  |
Hop to: |
Your Input Into These Forums Is Appreciated! Thanks!
Main Site Search 
