According to a Pew Research Center study, in May 2011, 43% of all American adults had...

According to a Pew Research Center study, in May 2011, 43% 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 355 community college students at random and finds that 162 of them have a smart phone. Then in testing the hypotheses: H 0 : p = 0.43 versus H a : p > 0.43, what is the test statistic? z = . (Please round your answer to two decimal places.)

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orchestra answered 1 year ago

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