Mathematics, 18.12.2021 22:40 xojade
According to a Pew Research Center study, in May 2011, 41% 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 448 community college students at random and finds that 206 of them have a smart phone. Then in testing the hypotheses: H 0 : p = 0.41 versus H a : p > 0.41, what is the test statistic? z = . (Please round your answer to two decimal places.)
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According to a Pew Research Center study, in May 2011, 41% of all American adults had a smart phone...
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