Question: 11. Based on the 95% confidence interval, is it likely that there is no difference in the proportion of IE users and Firefox users who

11. Based on the 95% confidence interval, is it likely that there is no difference in the proportion of IE users and Firefox users who prefer Bing? C yes C no 12. What is the

number of IE users who prefer Google? 13. What is the proportion

of IE users who prefer Google? [3 decimals] 14. What is the

number of Firefox users who prefer Google? 15. What is the proportion

of Firefox users who prefer Google? [3 decimals] 16. What is the

11. Based on the 95% confidence interval, is it likely that there is no difference in the proportion of IE users and Firefox users who prefer Bing? C yes C no 12. What is the number of IE users who prefer Google? 13. What is the proportion of IE users who prefer Google? [3 decimals] 14. What is the number of Firefox users who prefer Google? 15. What is the proportion of Firefox users who prefer Google? [3 decimals] 16. What is the difference in the proportion IE users and proportion of Firefox users who prefer Google? [3 decimals] 17. What is the lower limit of the confidence interval for the difference in proportions (IE minus Firefox)? [3 decimals]Chapter 8 Quiz 25 1. How many customers are IE users? 2. Of the IE users, what proportion prefer Bing? [3 decimals] 3. How many IE users prefer Bing? 4. How many Firefox users prefer Bing? 5. How many customers are Firefox users? 6. Of the Firefox users, what proportion prefer Bing? [3 decimals] 7. What is the difference between the proportion of IE users who prefer Bing and the proportion of Firefox users who prefer Bing? [3 decimals] 8. What is the lower limit of the 95% confidence interval for the differences between proportions (IE minus Firefox)? [3 decimals] 9. What is the upper limit of the 95% confidence interval for the differences between proportions (IE minus Firefox)? [3 decimals] 10. Does the confidence interval contain the value of zero? C yes C noA B D E 1 Favorite search engine Internet Explorer users Firefox users Other browser users All users 2 Google 192 211 31 434 3 Bing 161 131 22 314 4 Other 27 18 7 5218. What is the upper limit of the confidence interval for the difference in proportions (IE minus Firefox)? [3 decimals] l 19. Does the confidence interval for the difference in proportions contain the value of zero? :3 yes I] no 20. Based on the 95% confidence interval, is it likely that there is no difference in the proportion of IE users and Firefox users who prefer Google? :3 yes :3 no

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