Problem
Dentists Without Pain is a chain of 9 dental clinics located in Huston. Dentists Without Pain has realized that its clinics received a large number of clients who return to its clinics due to root canal complications. Dentists Without Pain collected data from its 9 clinics regarding the number of clients who return to the clinics due to root canal complication every month for 12 months as depicted in the table below. Show all calculations in detail.
|
|
Clinics
|
|
Month
|
Clinic 1
|
Clinic 2
|
Clinic 3
|
Clinic 4
|
Clinic 5
|
Clinic 6
|
Clinic 7
|
Clinic 8
|
Clinic 9
|
|
January
|
26
|
3
|
10
|
25
|
37
|
36
|
19
|
27
|
33
|
|
February
|
3
|
4
|
38
|
4
|
8
|
32
|
28
|
5
|
10
|
|
March
|
3
|
17
|
28
|
31
|
17
|
26
|
18
|
9
|
27
|
|
April
|
29
|
28
|
10
|
23
|
22
|
17
|
14
|
1
|
25
|
|
May
|
8
|
10
|
34
|
12
|
25
|
12
|
11
|
12
|
1
|
|
June
|
22
|
17
|
31
|
32
|
4
|
16
|
6
|
11
|
22
|
|
July
|
27
|
17
|
37
|
14
|
10
|
26
|
17
|
8
|
18
|
|
August
|
11
|
9
|
21
|
12
|
26
|
31
|
6
|
5
|
32
|
|
September
|
30
|
34
|
35
|
3
|
17
|
5
|
36
|
5
|
25
|
|
October
|
11
|
1
|
10
|
2
|
33
|
30
|
17
|
33
|
2
|
|
November
|
14
|
3
|
20
|
23
|
10
|
36
|
22
|
11
|
27
|
|
December
|
29
|
12
|
2
|
3
|
26
|
38
|
7
|
4
|
27
|
A. Determine whether the process of providing root canal is in control or not.
B. Dentists Without Pain wants to assess whether its clinics meet the LSL = 0 and USL = 3 returns. Help Dentists Without Pain in this assessment.
C. Calculate the percentage of clinics that do not meet the specification limits.