Question: Refer to Exercise 8-18 and the data shown in Table 8-16. Construct a control chart for the number of dissatisfied customers. Revise the chart, assuming

Refer to Exercise 8-18 and the data shown in Table 8-16. Construct a control chart for the number of dissatisfied customers. Revise the chart, assuming special causes for points outside the control limits.
TABLE 8-16

Number of Dissatisfied Customers Number of Dissatisfied Customers Sample Sample 12 13 14 15 16 17 18 19 20 4 4 12 10

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