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process.

Task 4.7
According to the results of experiment with three factors
3
/ 2 /, such values of Y were obtained:
Experiment
Х1 Х2 Х3 Уaver
number
1 + + + 8
2 - + + 19
3 + - + 27
4 - - + 40
5 + + - 17
6 - + - 35
7 + - - 21
8 - - - 32
Solving:
Determining the average values of Y for each level
/ +1, -1 / of all three factors:

8 27  17  21

X 1aver   18 , 25
4
19  40 35 32
X  1aver   31 5 ,
4
8 19  17  35
X  2aver   19 , 75
4
27  40  21 32

X 2aver   30 0 ,
4
8 19  27  40
X  3aver   23 5 .
4

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