Solutions Operations management

The following are quality control data for a manufacturing process at a chemical co. The data show t

Question: The following are quality control data for a manufacturing process at a chemical co. The data show the temperature in degrees of centigrade at five points in time during a manufacturing cycle. The co. is interested in using control charts to monitor the temperature of its manufacturing process. Construct the Xbar chart and R chart. What conclusions can be made about the quality of the process?

Sample	Xbar	R	Sample	Xbar	R
1	95.72	1.0	11	95.80	0.6
2	95.24	0.9	12	95.22	0.2
3	95.18	0.8	13	95.56	1.3
4	95.44	0.4	14	95.22	0.5
5	95.46	0.5	15	95.04	0.8
6	95.32	1.1	16	95.72	1.1
7	95.40	0.9	17	94.82	0.6
8	95.44	0.3	18	95.46	0.5
9	95.08	0.2	19	95.60	0.4
10	95.50	0.6	20	95.74	0.6