Construct charts for individuals using both two-period and three-period moving ranges for the following observations (in sequential order). Show the equations used for the control limits and centerline with the substitutions. You can use Minitab or Excel to build the charts. Show your work
7.2
|
8.5
|
7.4
|
9.5
|
16.3
|
17.1
|
8.1
|
7.4
|
14.7
|
17.3
|
15.5
|
4.3
|
8.5
|
16.9
|
17.2
|
6.2
|
15.1
|
11.5
|
7.5
|
12.8
|
13.5
|
16.9
|