Question: section pearson 7.5.75 In 2003 and 2017 a poll asked Democratic voters about their views on the FBI. In2003, 48% thought the FBI did a

section pearson 7.5.75

In 2003 and 2017 a poll asked Democratic voters about their views on the FBI. In2003, 48% thought the FBI did a good or excellent job. In2017, 65% of Democratic voters felt this way. Assume these percentages are based on samples of 1200 Democratic voters.

Construct a 95% confidence interval for the difference in the proportions of Democratic voters who believe the FBI is doing a good or excellentjob, p1p2. Let p1be the proportion of Democratic voters who felt this way in 2003 and p2 be the proportion of Democratic voters who felt this way in 2017.The 95% confidence interval is ( , )

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