Answer Happy

Please type all answers and attach control
charts ONLY without data sheets.
1. Patients’
complaints about long wait times have historically been a major
problem in an outpatient center. As an administrator,
you decided to use SPC tools to reduce wait times. Every
day, you measured wait times of 4 randomly-selected patients over a
period of 25 days. Measurements in minutes are shown in
the following table. Use MS Excel to construct appropriate control
charts and specify the control limits including 1-sigma and 2-sigma
limits. Circle out-of-control points based on the
Detection Rules.
Day
1
2
3
4
Day
1
2
3
4
1
8
15
12
9
14
17
14
16
10
2
15
7
11
22
15
24
11
8
19
3
15
7
10
10
16
17
12
10
18
4
7
28
17
13
17
25
7
9
15
5
11
13
9
8
18
20
10
18
10
6
22
15
35
10
19
30
14
17
15
7
7
6
8
10
20
10
14
15
20
8
28
21
10
24
21
20
11
8
17
9
11
8
12
8
22
24
7
6
10
10
1
7
6
17
23
15
7
12
13
11
5
9
12
11
24
7
2
15
13
12
16
25
31
21
25
14
8
9
17
13
7
14
7
16