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Probability - Confidence Interval for population proportion

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Question:
From a population of 1600 documents a random sample of 100 documents is drawn and found 10 defects in the sample. Find the representative number of defects in the total population of 1600 documents at 80% confidence level, at 90% confidence level and at 95% confidence level.
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Solution Summary

The solution determines the confidence interval for population proportion.

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Therefore, we can be 95% confident that the number of defects in the total population of 1600 documents would be between ...

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