Suppose a marketing research rm would like to examine if the social networking site that a person primarily uses is inuenced by his or her age. In a randomly drawn sample, 344 social network users were asked which site they primarily visited. These data are presented in the following table along with each person's age group. Complete parts a. through 6. below. g Click the icon to View the data table. 3. Using a = 0.05, perform a chi-square test to determine if age group and social networking site used are independent of one another. Identify the null and alternative hypotheses for a chi-square test of independence based on the information in the table. Choose the correct answer below. 0 A. H0: Age group and social networking site are not independent of one another. H1: Age group and social networking site are independent of one another. 0 B. H0: Age group and social networking site are independent of one another. H1 : The social networking site used affects the age group. Data table 0 C. HD: Age group and social networking site are independent of one another. H1 : Age group and social networking site are not independent of one another. O D. H0: Age group and social networking site are independent of one another. H1: The age group affects the social networking site. Calculate the chi-square test statistic. If necessary, combine age groups. x2 = (Round to two decimal places as needed.) Find he chi-square critical value, xi. xi = (Round to two decimal places as needed.) Determine the result of the test. Choose the correct answer below. 0 A. Reject H0. The test statistic falls into the rejection region. 0 B. Reject H0. The test statistic does not fall into the rejection region. 0 C. Fail to reject H0. The test statistic falls into the rejection region. 0 D. Fail to reject H0. The test statistic does not fall into the rejection region. b. What conclusions can be made based on these results? b. What conclusions can be made based on these results? There is Y c. Determine the p-va evidence to indicate that pvalue = (Round to three decimal places as needed.) Interpret he meaning of the p-value. ' he p-value is the pro Jability of observing a V ue using technology and interpret its meaning. as extreme or more extreme than the one observed under the assumption that the 7 7 enough that the 7 should be rejected. For this test, the pvalue is V V is true. A pvalue less than the signicance level a: means that the a: 0.05, so V the V There is V evidence to indicate that