According to a Pew Research Center study, in May 2011, 44% 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 now among community college students. She selects 350 community college students at random and finds that 175 of them have a smart phone. Then in testing the hypotheses: HO: p = 0.44 versus Ha: p > 0.44, what is the test statistic? Op = 0.5 Oz = 2.26 Ot = -0.151 OP = 0.0119 Previous Page Next Page Page 39 of 43