Question

A research poll several years ago from a random sample of adults asked the questions "Did you use the Internet yesterday?" and "Are you Race A, B, or C?" is the response to the question about the Internet independent of race, given the accompanying data? Complete parts a) through e) below. Click the icon to view the contingency table of race and Internet usage data. a) Under the null hypothesis, what are the expected values? What is the null hypothesis? O A. Ho: Race and Internet use are homogeneous. B. Ho: Race and Internet use are independent. O C. Ho: Race and Internet use are not independent. OD. Ho: Race and Internet use are not homogeneous. Х Internet and Race Contingency Table Calculate the expected values. Did You Use the Internet Yesterday? Yes No Race A Did You Use the Internet Yesterday? Yes No 2547 860 314 143 434 176 Race B Race C (Round to two decimal places as needed.) OOD Race A Race B Race C Print Done Snipping Tool

Answer 1

The statistical software output for this problem is :

Contingency table results: Rows: Race Columns: None Cell format Count (Expected count) A B Yes No Total 2547 860 3407 (2509.18) (897.82) 314 143 457 (336.57) (120.43) 434 176 610 (449 25) (160.75) 3295 1179 4474 c Total Chi-Square test: Statistic DF Value P-value Chi-square 29.8715764 0.0072