Example to be treated Lewis acid catalyzed rearrangement

Example to be treated Lewis acid catalyzed rearrangement 

A Lewis acid catalyzed rearrangement of an olefin was studied. The measured response, y, was the yield (%) of the rearranged product. Three experimental variables were considered  

The amounts of substrate and solvent were maintained constant in all experiments. 

It is a common practice to use uppercase letters to denote factors in factorial and fractional factorial designs. 

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