Problem:
A medical facility does MRIs for sports injuries. Occasionally a test yields inconclusive results and must be repeated. Using the following sample data and n = 197.
|
SAMPLE
|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
| Number of retests |
1 |
1 |
2 |
0 |
1 |
2 |
2 |
0 |
2 |
7 |
3 |
2 |
1 |
Required:
Question 1) Determine the upper and lower control limits for the fraction of retests using two-sigma limits.
Solve the given numerical problem and illustrate step by step calculation.