# In designing an experiment, the researcher can often choose many different levels of the various factors in

## Question:

(a) To consider all possible combinations, how many experiments would need to be conducted?

(b) Often in preliminary experimentation, each factor is restricted to two levels. With the three factors noted, how many experiments would need to be run to cover all possible combinations with each of the three factors at two levels?

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**Related Book For**

## Probability And Statistical Inference

**ISBN:** 579

9th Edition

**Authors:** Robert V. Hogg, Elliot Tanis, Dale Zimmerman