Table 4 Multivariate test statistics for the effect of layer height on impact strength.

From: Experimental investigation on impact resistance of stacked composite material hybridization by 3D printed CF-PEEK and aluminium foils

Source

Test criterion

Value

F

df (Num)

df (Den)

p-value

Layer Height

Wilks’ Lambda

0.27410

5.460

4

24

0.003

Lawley-Hotelling

1.96359

5.400

4

22

0.003

Pillai’s Trace

0.91358

5.466

4

26

0.002

Roy’s Largest Root

1.51021

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