Inspection of a random sample of 23 aircraft showed that 18 needed repairs to fi

Question

Inspection of a random sample of 23 aircraft showed that 18 needed repairs to fix a wiring problem that might compromise safety.

How large a sample would be needed to estimate the true proportion of jets with the wiring problem, with 99 percent confidence and an error of ± 6 percent?

Inspection of a random sample of 23 aircraft showed that 18 needed repairs to fix a wiring problem that might compromise safety.

How large a sample would be needed to estimate the true proportion of jets with the wiring problem, with 99 percent confidence and an error of ± 6 percent?

Explanation / Answer

Inspection of a random sample of 23 aircraft showed that 18 needed repairs to fi

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