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10-1 Researchers in a populous country contacted more than​ 25,000 inhabitants aged 22 years to see...

10-1

Researchers in a populous country contacted more than​ 25,000 inhabitants aged 22 years to see if they had finished high​ school; 81.7%

of the 12,858 males and 80.1​% of the 12,957 females indicated that they had high school diplomas.

​a) What assumptions are necessary to satisfy the conditions necessary for​ inference?

​b) Create a 90​% confidence interval for the difference in graduation rates between males and​ females,

p Subscript males Baseline minus p Subscript femalespmales−pfemales.

​c) Interpret your confidence interval.

​d) Is there evidence that boys are more likely than girls to complete high​ school?

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