Go to Help> Sample Data Click Alphabetical List of Files Navigate to Steam Turbines Historical and click link to file Go to Graph>Control Chart> Multivariate Control Chart Add Fuel, Steam Flow, Steam Temp, MW, Cool Temp, & Pressure to the Y Columns Click OK I get a UCL of 11.03
There seem to be a couple of issues with the documentation. 1. n is incorrectly defined for ungrouped data. It should be the number of data points, not the group sample size 2. The definition of alpha in the docs is not made clear but appears to be what I have written as 1-alpha with alpha the one sided level of risk
You're right Michael, I was first confused with the "n" notation, the type of "function of beta distribution" and the "first argument" of the function. The technical support team admitted the mistakes and confirmed "n" to be the total sample size, the "function" beta quantile function and the "first argument" (1-alpha).
There are errors in the documentation for Phase 2 as well, fyi.