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, “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 of the survey responded that the state of moral values is getting worse; on May 6-9, 2002, 737 of 1100 surveyed responded that the state of moral values is getting worse. Is there a significant difference between the two proportions at the ? = 0.1 level of significance? a.) Verify that the requirements for inference about two population proportions is satisfied. b.) What is the Null and Alternative Hypotheses? What test will
2.) 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, “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
of the survey responded that the state of moral values is getting worse; on May 6-9, 2002, 737 of 1100 surveyed
responded that the state of moral values is getting worse. Is there a significant difference between the two
proportions at the ? = 0.1 level of significance?
a.) Verify that the requirements for inference about two population proportions is satisfied.
b.) What is the Null and Alternative Hypotheses? What test will you be using?
c.) What is the level of significance and the ?-value?
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