Table 6.
Duncan Test based on Screw Hold Power

Type	N	Subset
		1	2	3
		PE	5	51.0880
AI	5	56.4460	56.4460
K	5	59.2777	59.2777	59.2777
PI	5	60.3720	60.3720	60.3720
MI	5		68.5160	68.5160
ME	5			71.5700
AE	5			72.5300
Sig.		.209	.104	.081

Means for groups in homogeneous subsets are displayed.
Based on observed means.
The error term is Mean Square (Error) = 108.505.