Suppose a marketing research firm would like to examine if the social networking site that a person primarily uses is influenced by his or her age. In a randomly drawn sample, 377 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 c. below. Click the icon to view the data table. a. 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. O A. Ho: Age group and social networking site are independent of one another. H: The social networking site used affects the age group. B. Ho Age group and social networking site are independent of one another. H: Age group and social networking site are not independent of one another. OC. Ho Age group and social networking site are not independent of one another. H, Age group and social networking site are independent of one another. OD. Ho: Age group and social networking site are independent of one another. H,: 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 the chi-square critical value, xã x = (Round to two decimal places as needed.) Determine the result of the test. Choose the correct answer below. O A. Fail to reject Ho. The test statistic falls into the rejection region. O B. Reject Ho. The test statistic falls into the rejection region. OC. Reject Ho The test statistic does not fall into the rejection region. O D. Fail to reject Ho. The test statistic does not fall into the rejection region. b. What conclusions can be made based on these results? There ie () avidence to indicate that (2)
Suppose a marketing research firm would like to examine if the social networking site that a person primarily uses is influenced by his or her age. In a randomly drawn sample, 377 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 c. below. Click the icon to view the data table. a. 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. O A. Ho: Age group and social networking site are independent of one another. H: The social networking site used affects the age group. B. Ho Age group and social networking site are independent of one another. H: Age group and social networking site are not independent of one another. OC. Ho Age group and social networking site are not independent of one another. H, Age group and social networking site are independent of one another. OD. Ho: Age group and social networking site are independent of one another. H,: 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 the chi-square critical value, xã x = (Round to two decimal places as needed.) Determine the result of the test. Choose the correct answer below. O A. Fail to reject Ho. The test statistic falls into the rejection region. O B. Reject Ho. The test statistic falls into the rejection region. OC. Reject Ho The test statistic does not fall into the rejection region. O D. Fail to reject Ho. The test statistic does not fall into the rejection region. b. What conclusions can be made based on these results? There ie () avidence to indicate that (2)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 4BGP
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