Question

The following are quality control data for a manufacturing process at Kensport Chemical Company. The data show the temperature in degrees centigrade at five points in time during a manufacturing cycle.

Sample	x	R
1	95.72	1.0
2	95.24	0.9
3	95.18	0.7
4	95.42	0.4
5	95.46	0.5
6	95.32	1.1
7	95.40	1.0
8	95.44	0.3
9	95.08	0.2
10	95.50	0.6
11	95.80	0.6
12	95.22	0.2
13	95.54	1.3
14	95.22	0.5
15	95.04	0.8
16	95.72	1.1
17	94.82	0.6
18	95.46	0.5
19	95.60	0.4
20	95.74	0.6

Compute the upper and lower control limits for the x chart. (Round your answers to three decimal places.)

UCL =  

LCL =

Answer 1