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The manufacturers are interested in estimating the percentage of defective light bulbs coming from a certain process. They want a 97% confidence interval with a

The manufacturers are interested in estimating the percentage of defective light bulbs coming from a certain process. They want a 97% confidence interval with a margin of error of 3.6%. How many light bulbs must they test? Give the appropriate whole number. (That is, with no decimal places.)

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