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6. Process or Product Monitoring and Control
6.5. Tutorials
6.5.4. Elements of Multivariate Analysis
6.5.4.3. Hotelling's T squared

6.5.4.3.4.

Chart for Individual Observations -- Phase II

Control limits In Phase II, each value of Qj would be plotted against the UCL of
    [(p*(m+1)*(m-1))/(m^2 - m*p)]*F(alpha,p,m-p)
with, as before, p denoting the number of characteristics.
Further Information The control limit expressions given in this section and the immediately preceding sections are given in Ryan (2000, Chapter 9).
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