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According to a Pew Research Center study, in May 2011, 38% of all American adults had a smart phone (one which the user can use to read email and surf the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 362 community college students at random and finds that 173 of them have a smart phone. Then in testing the hypotheses: H0: p = 0.38 versus Ha: p > 0.38, what is the test statistic?

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According to a Pew Research Center study, in May 2011, 38% of all American adults had a smart phone (one which

the user can use to read email and surf the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 362 community college students at random and finds that 173 of them have a smart phone. Then in testing the hypotheses:

H0: p = 0.38 versus 

Ha: p > 0.38, 

what is the test statistic?

 
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