In Taguchi method, the signal to noise ratio or mean of mean were obtained..Which is best to understand the particular process?

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Kadir Aztekin

you should S/N ratio when your results has repetions. (for example 2 or 3 repetions). you should mean of mean when your results has one repetion.

Alojzij Sluga

In fact, first of all S/N ratio as a loss function in Taguchi method gives a reasonably robust answer to process disposition. Yes, and this implies experiment repetitions. And the results give you an insight into the levels as well as variability of the process regarding process parameters.

Sobhan Sarkar

Read Design and Analysis of Experiments by D. Montgomery.