Question: Consider the data on the parameters in a chemical process of temperature, pressure, proportion of catalyst, and pH value of mixture as indicated in Table

Consider the data on the parameters in a chemical process of temperature, pressure, proportion of catalyst, and pH value of mixture as indicated in Table 3-16.
(a) Construct a Hotelling's T2-chart and comment on process stability. Which process parameters, if any, would you investigate further?
(b) Analyze process variability through a generalized variance chart.

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