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example 11.3 the gallup organization surveyed 1100 adult Americans on may 6-9, 2002, and conducted an independent survey of 1100 adult Americans on may 8-11, 2014. in both surveys, they asked the following "right now, do you think the state of moral values in the country as a whole is getting better or getting worse?" on may 8-11, 2014, 816 of the 1100 surveyed responded that the state of moral values is getting worse; on may 6-9, 2002, 737 of the 1100 surveyed responded that the state of moral is getting worse. construct and interpret a 90% confidence interval for the different between the 2 population proportions
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