10. Graduation. In October 2000 the U.S. Department
Chapter 22, Problem 10(choose chapter or problem)
10. Graduation. In October 2000 the U.S. Department ofCommerce reported the results of a large-scale survey onhigh school graduation. Researchers contacted more than25,000 Americans aged 24 years to see if they had finishedhigh school; 84.9% of the 12,460 males and 88.1% ofthe 12,678 females indicated that they had high schooldiplomas.a) Are the assumptions and conditions necessary for inferencesatisfied? Explain.b) Create a 95% confidence interval for the difference ingraduation rates between males and females.c) Interpret your confidence interval.d) Does this provide strong evidence that girls are morelikely than boys to complete high school? Explain.
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