12.4 The data in Table EX 12.4 records the number of clinician electronic medical record (EMR) data entry errors in a long-term acute care facility collected as part of a

12.4 The data in Table EX 12.4 records the number of clinician electronic
medical record (EMR) data entry errors in a long-term acute care facility
collected as part of a sampling study. Samples of 500 data entries were
used.
Table EX 12.4
Sample Data Entry Errors
1
5
2
13
4
5
6
10
7
6
8
12
9
10
11
5
12
3
13
3
14
6
15
7
16
17
17
8
18
10
19
11
20
19
21
17
22
11
23
15
24
13 a. Determine the fraction defective in each sample.
b. Using a 95.5 percent confidence level, determine the control limits for
an appropriate control chart.
c. Construct an appropriate control chart and identify any observations
that are not within control limits.