Table 6.

SPC Analysis on MPC and Daily QA 3 output variations: “6X”

Machine	Output (% variation)
	6X
		Data	UCL	LCL	$\overline{X}$	SD
A	MPC	98	0.203	−0.745	−0.271	0.739
	Daily QA3	98	0.687	−0.610	0.038	0.613
B	MPC	174	0.727	−0.324	0.201	0.578
	Daily QA3	118	1.024	−0.028	0.498	0.534
C	MPC	119	0.388	−0.597	−0.104	0.383
	Daily QA3	97	1.127	−0.111	0.508	0.331
D	MPC	192	1.243	0.315	0.779	0.466
	Daily QA3	150	1.453	0.072	0.763	0.415
E	MPC	265	0.689	−0.254	0.218	0.539
	Daily QA3	224	0.053	−0.912	−0.430	0.343
F	MPC	190	0.286	−0.444	−0.079	0.292
	Daily QA3	87	0.881	−0.507	0.187	0.487