On an international exam, students are asked to respond to a variety of background questions. For the 41 nations that participated in the exam, the correlation between the percentage of items answered in the background questionnaire (used as a proxy for student task persistence) and mean score on the exam was 0.786. 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. 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. OA. No, since |0.786 is greater than the critical value for 30. OB. No, since 0.786 is less than the critical value for 30. OC. Yes, since 0.786 is less than the critical value for 30. OD. Yes, since 0.786 is greater than the critical value for 30. What does this result mean? O A. Countries in which students cheated on the exam also cheated on the items in the background questionnaire. OB. 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. OC. Countries in which students answered a lesser percentage of items in the background questionnaire tended to have higher mean scores on the exam. OD. Countries in which students answered a greater percentage of items in the background questionnaire tended to have higher mean scores on the exam.
On an international exam, students are asked to respond to a variety of background questions. For the 41 nations that participated in the exam, the correlation between the percentage of items answered in the background questionnaire (used as a proxy for student task persistence) and mean score on the exam was 0.786. 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. 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. OA. No, since |0.786 is greater than the critical value for 30. OB. No, since 0.786 is less than the critical value for 30. OC. Yes, since 0.786 is less than the critical value for 30. OD. Yes, since 0.786 is greater than the critical value for 30. What does this result mean? O A. Countries in which students cheated on the exam also cheated on the items in the background questionnaire. OB. 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. OC. Countries in which students answered a lesser percentage of items in the background questionnaire tended to have higher mean scores on the exam. OD. Countries in which students answered a greater percentage of items in the background questionnaire tended to have higher mean scores on the exam.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 15PPS
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