Question

A large retail toy store finds that, on average, a certain cheap (under $20) electronic toy has a 5 percent damage rate during shipping. From each incoming shipment, a sample of 100 is inspected.
(a) Find the control limits for a p chart.
(b) Plot the 10 samples below on the p chart. Is the process in control?
(c) Is the sample size large enough to assume normality of the sample proportion? Explain.


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  • CreatedAugust 19, 2015
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