Suppose you conduct a 4 × 3 factorial experiment.
a. How many factors are used in the experiment?
b. Can you determine the factor type(s)-qualitative or quantitative -from the information given? Explain.
c. Can you determine the number of levels used for each factor? Explain.
d. Describe a treatment for this experiment and determine the number of treatments used.
e. What problem is caused by using a single replicate of this experiment? How is the problem solved?