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The Quality Control Department wants to estimate the true percentage of rework for electrical components to...

The Quality Control Department wants to estimate the true percentage of rework for electrical components to within ±5%, with 99% confidence. Based on similar past studies, the percentage of rework was found to be 12%. How many components should they sample?

22

281

100

4792

Math   Statistics-And-Probability   
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Answer #1

Answer : Sample size ( n ) = 281

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