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A quality control expert wants to estimate the proportion of defective components that are being manufactured by his company. A sample of 300 components showed

A quality control expert wants to estimate the proportion of defective components that are being manufactured by his company. A sample of 300 components showed that 20 were defective. Find a 99% confidence interval for the true proportion of defective components.

0.10< p <0.280.05< p <0.120.04< p <0.180.03< p <0.10

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