OBSERVATIONS (SLIP- RING DIAMETER, CM)
	Days	1	2	3	4	5	Sample Means	Sample Ranges
	1	5.02	5.01	4.94	4.99	4.96
	2	5.01	5.03	5.07	4.95	4.96
	3	4.99	5	4.93	4.92	4.99
	4	5.03	4.91	5.01	4.98	4.89
	5	4.95	4.92	5.03	5.05	5.01
	6	4.97	5.06	5.06	4.96	5.03
	7	5.05	5.01	5.1	4.96	4.99
	8	5.09	5.1	5	4.99	5.08
	9	5.14	5.1	4.99	5.08	5.09
	10	5.01	4.98	5.08	5.07	4.99
Mean Control Chart			Days	Sample Means	UCL	LCL
UCL	5.08	given			1
LCL	4.94	given			2
					3
					4
Range Control Chart			5
UCL	0.243	given			6
LCL	0	given			7
					8
					9
					10
						Sample Ranges	UCL	LCL
					1
					2
					3
					4
					5
					6
					7
					8
					9
					10