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Category > Statistics Posted 25 May 2017 My Price 7.00

Teen Boys Forget Whatever It Was

10.62 An article titled “Teen Boys Forget Whatever It Was” appeared in the Australian newspaper The Mercury (April 21, 1997). It described a study of academic per- formance and attention span and reported that the mean time to distraction for teenage boys working on an inde- pendent task was 4 min. Although the sample size was not given in the article, suppose that this mean was based on a random sample of 50 teenage Australian boys and that the sample standard deviation was 1.4 min. Is there convincing evidence that the average attention span for

teenage boys is less than 5 min? Test the relevant hypothe- ses using a = .01.

Answers

Alpha Geek
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Status NEW Posted 25 May 2017 11:05 AM My Price 7.00

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file 1495711020-Answer.docx preview (160 words )
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