Ongoing process to establish p-chart for control

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Reference no: EM131746632

Nine samples of 20 parts each were taken from an ongoing process to establish a p-chart for control. The samples and the number of defectives in each are shown in the following table: Sample - n - Number of defectives in the sample

1 20 0

2 20 2

3 20 4

4 20 0

5 20 0

6 20 2

7 20 0

8 20 5

9 20 1

a) Develop a p-chart for 96% confidence.

b) Based on the plotted data points, what comments can you make?

Reference no: EM131746632

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