One hundred insurance claim forms are inspected daily at Full Life Insurance Co. over 25 working days,

Question:

One hundred insurance claim forms are inspected daily at Full Life Insurance Co. over 25 working days, and the number of forms with errors have been recorded in the worksheet Prob07-06 in the Ch07Data.xlsx file. Construct a p-chart. If any points occur outside the control limits, assume that assignable causes have been determined and construct a revised chart.

 

Full Life Insurance Co.














Fraction Nonconforming (p) Chart




This spreadsheet is designed for up to 50 samples. Enter data ONLY in yellow-shaded cells.
Click on the sheet tab to display the control chart (some rescaling may be needed). 









Average (p-bar)0.022




Avg. sample size
100















SampleFractionStandard



SampleValueSizeNonconformingDeviationLCLpCLUCLp
131000.03000.014700.02200.0660
231000.03000.014700.02200.0660
331000.03000.014700.02200.0660
421000.02000.014700.02200.0660
501000.00000.014700.02200.0660
631000.03000.014700.02200.0660
701000.00000.014700.02200.0660
811000.01000.014700.02200.0660
971000.07000.014700.02200.0660
1031000.03000.014700.02200.0660
1121000.02000.014700.02200.0660
1201000.00000.014700.02200.0660
1301000.00000.014700.02200.0660
1441000.04000.014700.02200.0660
1511000.01000.014700.02200.0660
1621000.02000.014700.02200.0660
1741000.04000.014700.02200.0660
1801000.00000.014700.02200.0660
1911000.01000.014700.02200.0660
2011000.01000.014700.02200.0660
2101000.00000.014700.02200.0660
2221000.02000.014700.02200.0660
2381000.08000.014700.02200.0660
2411000.01000.014700.02200.0660
2541000.04000.014700.02200.0660
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