within contr 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 1 Data Entry Errors 5 6 2 4 3 4 8 5 8 6 10 7 6 8 12 9 8 10 6 11 5 12 3 13 3 14 6 7 16 17 8 17 18 19 10 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 appropri- ate control chart. C. Construct an appropriate control chart and identify any observations that are not within control limits