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63 A recent survey of 273 randomly selected teens living in Massachusetts asked about social...

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63 A recent survey of 273 randomly selected teens living in Massachusetts asked about social media Sixty three said that they routinely use a certain app to share pictures The researchers want to determine if there is good evidence that more than 30 percent of teens use this app The alternative hypothesis is as follows a p 0 30 b p 0 30 c p 0 30 d p 0 30 64 A statistics instructor believes that fewer than 20 percent of Evergreen Valley College EVC students attended the opening night midnight showing of the latest Harry Potter movie She surveys 84 of her students and finds that 11 attended the midnight showing An appropriate alternative hypothesis is as follows a p 0 20 b p 0 20 c p 0 20

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