# Question: A control chart is used to control the fraction nonconforming

A control chart is used to control the fraction nonconforming for a plastic part manufactured in an injection molding process. Ten subgroups yield the data in Table 7E.9.

(a) Set up a control chart for the number nonconforming in samples of n = 100.

(b) For the chart established in part (a), what is the probability of detecting a shift in the process fraction nonconforming to 0.30 on the first sample after the shift has occurred?

(a) Set up a control chart for the number nonconforming in samples of n = 100.

(b) For the chart established in part (a), what is the probability of detecting a shift in the process fraction nonconforming to 0.30 on the first sample after the shift has occurred?

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