Strength of Concrete

• Methods used to plan the exact values of predictors (factors)
• Begin with a balanced design
• Sequential Experimentation is used to determing important factors
• Response Surface Experiments

Obeservational Data Sets

• Thus far this is what we have been working with, existing predictor data
• Often comes in the form of a large comprehensive data set

Designed Experiments

• Prefer a sequence of studies rather than one large dataset
• Involves planning, designing and analyzing an experiment