In the Sullivan Statistics Survey, respondents were asked to disclose whether they have a Facebook account. Treat
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In the Sullivan Statistics Survey, respondents were asked to disclose whether they have a Facebook account. Treat the respondents as a simple random sample of adult Americans.
(a) What proportion of the males who took the survey has a Facebook account? What proportion of the females who took the survey has a Facebook account?
(b) Is there significant evidence to suggest a higher proportion of females than males has a Facebook account at the α = 0.05 level of significance?
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a We have x males 57 n males 82 x females 98 and n females 116 so p males x males n males 5782 0695 ...View the full answer
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