Question

In: Statistics and Probability

494: Which of the following is NOT true in regards to blocking? A. A block is...

494: Which of the following is NOT true in regards to blocking?

A. A block is a dummy factor which doesn’t interact with real factors

B. A blocking factor has 2 levels

C. A block is a subdivision of the experiment

D. Blocks are used to compensate when production processes restrict randomization of runs

Solutions

Expert Solution

Which of the following is NOT true in regards to blocking?

B. A blocking factor has 2 levels

C. A block is a subdivision of the experiment

### true in regarding blocking : option : A.) A block is a dummy factor which doesn’t interact with real factors.

and (D) Blocking is used to compensate when production processes restrict randomization of runs.

I will give one example regarding true in regarding blocking :

for example , assume an experimental factor is a temperature an dis set of 3 levels . if it is very difficult to move the

temperature between the 3 levels the experiment could be blocked into 3 groups . low , medium , and high temperature . Each block of trials would be run together . To compensate for not running the trials in random order , the block is a dummy variable .

so here if we talk about not true regarding blocking is :

B. A blocking factor has 2 levels

C. A block is a subdivision of the experiment

orchestra answered 1 year ago
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