For the data shown below, prepare a x-bar chart. Note that the sample size is three. Record the values for the UCL, center line, and LCL. In addition, note any points that are out of control.
|
Sample
|
Mean
|
Range
|
Sample
|
Mean
|
Range
|
|
1
|
10.51
|
2.34
|
6
|
8.59
|
2.24
|
|
2
|
10.83
|
7.80
|
7
|
10.32
|
2.12
|
|
3
|
11.32
|
2.47
|
8
|
9.01
|
3.44
|
|
4
|
9.15
|
2.86
|
9
|
12.01
|
0.05
|
|
5
|
9.44
|
3.77
|
10
|
8.44
|
1.55
|