Multiple independent variables and multiple levels

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Explain the difference between multiple independent variables and multiple levels of independent variables. Which is better? What is blocking and how does it reduce "noise"? What is a disadvantage of blocking? What is a factor? How can the use of factors benefit a design? Explain main effects and interaction effects. How does a covariate reduce noise? Describe and explain three trade-offs present in experiments.

Reference no: EM13895177

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