See below the absenteeism data for nurses working in a clinic after taking a random sample of 64 for three weeks (assuming the clinic is open only five days a week).
Using a 2-sigma control chart (i.e., by using z=2), what can you conclude regarding the absenteeism of the nurses?
Day |
Nurses
Absent
|
1 |
4 |
2 |
3 |
3 |
2 |
4 |
4 |
5 |
2 |
6 |
5 |
7 |
3 |
8 |
4 |
9 |
7 |
10 |
2 |
11 |
3 |
12 |
2 |
13 |
1 |
14 |
3 |
15 |
4 |