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PROPORTIONS: CONFIDENCE INTERVALS In a 2003 study on dreaming, an investigator found that 81% of people said they dream in color. The investigator determined that

PROPORTIONS: CONFIDENCE INTERVALS In a 2003 study on dreaming, an investigator found that 81% of people said they dream in color. The investigator determined that the margin of error for the 90% confidence interval was 7.2%. Write the 90% confidence interval estimate of the percentage of people who dream in color. (Round answer to 10ths of a percent.)

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