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The Office of Records at a University Has Stated That

Question 27

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The office of records at a university has stated that the proportion of incoming female students who major in business has increased.A sample of female students taken several years ago is compared with a sample of female students this year.Results are summarized below.Has the proportion increased significantly? Test at α = .10.
​ The office of records at a university has stated that the proportion of incoming female students who major in business has increased.A sample of female students taken several years ago is compared with a sample of female students this year.Results are summarized below.Has the proportion increased significantly? Test at α = .10. ​

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H0: ppres - pprev ≤ 0
Ha: ppres - pprev > 0
z ...

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