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.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text: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.
Transcribed Image Text:Data table
Print
3
0.997
4
0.950
5
0.878
6
0.811
7
0.754
8
0.707
9
0.666
10 0.632
11 0.602
12 0.576
13 0.553
14 0.532
15 0.514
16 0.497
17 0.482
18 0.468
19 0.456
20 0.444
21 0.433
22 0.423
23 0.413
24 0.404
25 0.396
26 0.388
27 0.381
28 0.374
29 0.367
30 0.361
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