Describe completely randomized and randomized complete block designs. What are the assumptions underlying the use of...

Describe completely randomized and randomized complete block designs. What are the assumptions underlying the use of each experimental design? What is the main advantage of blocking?

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Expert Solution

Three basic principles of design of experiments are.

1. Randomisation 2. Replication 3.Local control or Error control.

BLOCKING

blocking is used to reduce the experimental error contributed by nuisance factors. Randomization is then used to reduce the contaminating effect of the remaining nuisance variables. The analysis of the experiment will then focus on the effect of the varying levels of the primary factor within each blocks of the experiment .

orchestra answered 1 year ago

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