Six Sigma Assignment: Behara
Q1. As a hospital administrator of a large hospital, you are concerned with the absenteeism among nurses' aides. The issue has been raised by registered nurses, who feel they often have to perform work normally done by their aides. To get the facts, absenteeism data were gathered for the last three weeks, which is considered a representative period for future conditions. After taking random samples of 64 personnel files each day, the following data were produced.
|
Day
|
Aides Absent
|
Day
|
Aides Absent
|
|
1
|
4
|
9
|
7
|
|
2
|
3
|
10
|
2
|
|
3
|
2
|
11
|
3
|
|
4
|
4
|
12
|
2
|
|
5
|
2
|
13
|
1
|
|
6
|
5
|
14
|
3
|
|
7
|
3
|
15
|
4
|
|
8
|
4
|
|
|
Because your assessment of absenteeism is likely to come under careful scrutiny, you would like to use three-sigma control limits. Do you need to further investigate the absenteeism among nurses' aides? Explain.
Q2. The turn-around time for blood work at a laboratory based on the following data. (Use excel or do it by hand, but charts are required). Is the process in control?
Q3. For a hospital in-patient satisfaction study, 200 patients were surveyed each day. In response to their overall satisfaction, they replied yes/no. The following data was collected. Comment on the patient satisfaction. (Use excel or do it by hand, but charts are required).
Q4. The following patient complaints data was collected at an MRI facility that specializes in sports injuries. The manager wants to know if the service process is in control at a two-sigma level. Please comment.
|
Day
|
Number of
Complaints
|
Day
|
Number of
Complaints
|
|
1
|
4
|
8
|
12
|
|
2
|
10
|
9
|
13
|
|
3
|
14
|
10
|
7
|
|
4
|
8
|
11
|
6
|
|
5
|
9
|
12
|
4
|
|
6
|
6
|
13
|
2
|
|
7
|
5
|
14
|
10
|