Question

According to a Pew Research Center, in May 2011, 35% of all American adults had a smartphone (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 300 community college students at random and finds that 114 of them have a smartphone. In testing the hypotheses: H0: p = 0.35 versus HA: p > 0.35, she calculates the test statistic as Z = 1.07. Use the Normal Table to help answer the p-value part of this question. Click here to access the normal table. There is not enough evidence to show that more than 35% of community college students own a smartphone (P-value = 0.1423). There is not enough evidence to show that more than 35% of community college students own a smartphone (P-value = 0.8577). There is not enough evidence to show that more than 35% of community college students own a smartphone (P-value = 0.2846). There is enough evidence to show that more than 35% of community college students own a smartphone (P-value = 0.1423).

Answer 1