4.1

5: Data set w x75179 y32695 6: critical values for the correlation coefficient Critical Values for Correlation Coefcient 0.997 0.950 0.878 0. B 1 '| 0.754 0.707 0.666 0.632 0.602 0.576 0.553 0.532 0. 51 4 0.497 0.482 0.468 0.456 0.444 0.433 0.423 0.41 3 0.404 0.396 0. 388 0.381 0.374 0.367 0. 361 (1) 0 negative (2) O greater (3) O anegative O positive 0 not greater 0 no 0 apositive YOU ANSWERED: D. 3. On an international exam. students are asked to respond to a variety of background questions. For the41 nations that participated in the exam, the correlation between the percentage of items answered in the background questionnaire {used as a proxy tor student task persistence) and mean score on the exam was 0.738. Does this suggest there is a linear relation between student task persistence and achievement score? Write a sentence that explains what this result might mean. 7 Click the icon to view the critical values table. Does this suggest there is a linear relation between student task persistence and achievement score? Choose the best response below. AVA Yes. since I0.738| is greater than the critical value for 30. ' B Yes. since I0.738I is less than the critical value for 30. . ' C. No. since I0.738I is less than the critical value for 30. ' D. No. since I0.738I is greater than the critical value for 30. What does this result mean? 0 A. Countries in which students answered a greater percentage of items in the background questionnaire tended to have higher mean scores on the exam. 0 B. Countries in which students cheated on the exam also cheated on the items in the background questionnaire. 0 c. There is no linear relation between countries in which students answered a greater percentage of items in the background questionnaire and higher mean scores on the exam. 0 D. Countries in which students answered a lesser percentage of items in the background questionnaire tended to have higher mean scores on the exam. 7: Data Table Critical Values for Correlation Coefcient 0.997 0.950 0.878 0.8 1 1 0.754 0.707 0.666 0.632 0.602 0.576 0.553 0.532 0.51 4 0.497 0.452 0.463 0.456