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11...Ten samples of 15 parts each were taken from an ongoing process to establish ap-chart...

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Accounting

11...Ten samples of 15 parts each were taken from an ongoing process to establish ap-chart for control. The samples and the number of defectives in each are shown in the following table.

sample N Defectives Items

1 15 2

2 15 1

3 15 1

4 15 1

5 15 1

6 15 0

7 15 2

8 15 1

9 15 3

10 15 0

a.Determine thep

p,Sp,UCL and LCL for ap-chart of 95 percent confidence (1.96 standard deviations).(Leave no cells blank. Round up any negative LCL value to "0". Round your answers to 3 decimal places.)

b.What comments can you make about the process?

  • Process is out of statistical control or Process is in statistical control?

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