The two types of errors DOE setups are needed to understand are

OPTIONS

• Pure error and Lack of Fit error
• Noise and Reproducibility
• Common and Special Causes
• Causal and Lack of Fit error

ANSWER

Pure error and Lack of Fit error

EXPLANATION

DOE setups and coefficients analysis help one to understand the Pure error and lack of fit error of the model, so THE FIRST OPTION is correct.