Hi there everyone
Not sure yet where to post my newbie questions
I am learning to use minitab here at work.
I have created basic I Charts for the last year. All OK
This year the team want to begin implementing previous historical data to generate Control Limits.
I have collated all the data and have generated historical Mean and SD .
My question is:
My 2016 Mintab project has been saved as a 2017 project.
it pulls data in from an excel spreadheet using the MTB data import.
How can i apply the historical SD and or mean to the charts without recreating them.
I can apply the historical mean and SD whilst creating a new chart, but cannot see where I can apply them before doing the update.
Stat>Control Charts>Individual Charts–go into I-MR Options and select limits tab. This should help.
@joelatminitab might add more since I’m quickly typing this. :)
@KatieBarry Thanks. Hope they reach out to me so I know who to contact besides my fave Jenn!
Hi, Chris is correct- in the Limits area of the dialog the first tab is Parameters- you can enter a historical mean and standard deviation there.
@MBBinWI- you are also correct. :)
@cseider- let’s catch up soon.
Thank you for the suggestion to provide a way to specify a historical mean and stdev when updating control charts. Currently, you can only specify parameters when initially creating a control chart, but I can certainly see a use case for charts that have already been created and need to be updated with new data.