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2 29 Internet searches and cell phones Pew Research Cen ter s Internet and American...

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2 29 Internet searches and cell phones Pew Research Cen ter s Internet and American Life Project asked a ran dom sample of 2485 cell phone users whether they had used their cell phone to look up health or medical in formation Of these 422 said Yes 22 a Pew dialed cell phone telephone numbers at ran dom in the continental United States in an attempt to contact a random sample of adults Based on what you know about national sample surveys what is likely to be the biggest weakness in the survey b Act as if the sample is an SRS Give a large sample 90 confidence interval for the proportion p of all cell phone users who have used their cell phone to look up health or medical information c Three out of the five most popular health related searches on cell phones have to do with sex preg nancy herpes and STD sexually transmitted diseases Sex related queries don t even show up on Google and Yahoo s list of top five health searches on computers What do you think explains the dif ference in the topics for health related searches on cell phones versus computers When drawing con

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