Refer to Exercise 12-30. Factor A is the concentration of corn extract, factor B is the concentration of an ethylene based compound, and factor C is the distillation temperature. Each factor will be controlled at two levels. Suppose the experimenter runs a 23-1 fractional factorial experiment, with the defining contrast being I = ABC. Using the data in Table 12-44, perform an analysis to determine the significance of effects. Which effects cannot be estimated? What is the alias structure? Comment on your inferences if the level of significance is 5%.

Transcribed Image Text:

Treatment Degree of Undesirable Emission Level (ppm) 30 18 30 43 28 54 58 24 24 26 24 25 32 47 24 49 48 20 ac 46 abc