DOE Results (I)

• Predicted model in terms of the significant effects [4]:

7161- 1589 x No. of Brush Cycles - 1261 x Brush Press. -

7 x Brush Speed + 268 x No. of BrushCycles x Brush Press.

+2 x No. of Brush Cycles x Brush Speed

Effect from main factors and its interactions

-1470

-854

-234

386

1010

1

5

10

20

30

50

70

80

90

95

99

A

B

C

AB

AC

Normal Probability %

Sum of all defects =

[4]. Design-Ease, DOE software package, Stat-Ease, Inc., MN, 1994

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