Question

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Answer 1

sorry i'm not sure on this one

Answer 2

I think it is the third one, since in order to apply the statistical methods, it is necessary to work with random samples first

Answer 3

But don't you have to run the experiment many times before you can randomly separate the employees’ individual results into two groups??

Answer 4

furthermore the procedure has to be repeated many times

Answer 5

Ohh ok I get it. Thanks, Michele!

Answer 6

with experiment I understand the entire statistical procedure