A Nevada Bank keeps track of errors from 20 clerks. Each sample has 100 records. They...

 

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A Nevada Bank keeps track of errors from 20 clerks. Each sample has 100 records. They want to construct a P-chart to track the proportion of errors in each sample. The table below shows the number of errors per sample. (Use z = 3 for control limit calculations.) Sample Errors Sample Errors Sample Errors 1 6 8 6 15 5 2 5 9 4 16 3 3 10 17 4 4 11 18 6 12 19 2 6 4 13 5 20 7 7 14 4 TOTAL 88 1. Determine P. 2. Determine op. 3. Determine the 3-sigma UCL and LCL. 4. Does the process appear to be in statistical control? 1. 2. 2. 2. A Nevada Bank keeps track of errors from 20 clerks. Each sample has 100 records. They want to construct a P-chart to track the proportion of errors in each sample. The table below shows the number of errors per sample. (Use z = 3 for control limit calculations.) Sample Errors Sample Errors Sample Errors 1 6 8 6 15 5 2 5 9 4 16 3 3 10 17 4 4 11 18 6 12 19 2 6 4 13 5 20 7 7 14 4 TOTAL 88 1. Determine P. 2. Determine op. 3. Determine the 3-sigma UCL and LCL. 4. Does the process appear to be in statistical control? 1. 2. 2. 2.

Answer rating: 100% (QA)

Sample Errors Sample Size Fraction Defective 1 6 100 006 2 5 100 005 3 3 ... View the full answer