07-25-2013 08:41 AM
Is it possible to apply a weighting to certain products when using proc means?
My situation is that a new group of products has just been introduced causing the results of the proc means to be inflated.
Previous to the new group of products the results fall between the UCL & LCL normally for each day, after results are very high.
I don't want the customer to think that something is wrong with the data.