03-19-2012 03:05 PM
I'm trying to do a Gauge R&R and I'm a little confused by the data in the report.
I'm looking at the help file for JMP 9.0, under the following heading:
Variability Chart and Gauge R&R Analysis
In the Gauge R&R Report, there are several different results. At one point, it says, "49.7571 % Gauge R&R =100*(RR/TV)"
A few lines down, in the section "Variance Components for Gauge R&R," it says Gauge R&R % of Total 24.76%.
The wording is similar, but the values are quite different, so I'm not sure what the difference is and which one I should be using.
In particular, the section that says "Acceptable Variation" gives thresholds for excellent, adequate, maginal and unacceptable RR%.... but I'm not sure which number in the report I should look at to make that evalutation. Should I look at the 49.7571% value (in which case the help file shows unaccetable) or should I look at the 24.76%?
thanks in advance.