Table 4.

Results of t test comparing striker types for each lot and machine combination.

Lot	Machine	Difference (J)	SE of Difference (J)	p-value for t test
LL-157	1	0.34	0.14	0.009
	2	0.79	0.12	< 0.0001
	3	0.53	0.16	0.002
LL-162	1	0.01	0.20	0.97
	2	−0.02	0.21	0.92
	3	−0.06	0.17	0.74
HH-107	1	0.43	1.43	0.76
	2	8.40	1.65	< 0.0001
	3	0.65	1.39	0.64
HH-168	1	−0.03	0.94	0.97a
	2	−0.63	0.82	0.45
	3	0.81	0.82	0.33

^aA t test based on unequal variances was used.