The data in the table to the right are based on the results of a survey comparing the commute time of adults to their score on a well-being test. Complete parts (a) through (d) below. Commute Time Well-Beingo (in minutes) Score 4 69.5 16 68.1 E Click the icon to view the table of critical values of the correlation coefficient. 26 67.8 34 67.4 46 66.6 65 65.3 103 63.2 (a) Which variable is likely the explanatory variable and which is the response variable? O A. The explanatory variable is commute time and the response variable is the well-being score because well-being score affects the commute time score. O B. The explanatory variable is commute time and the response variable is the well-being score because commute time affects the well-being score. O C. The explanatory variable is the well-being score and the response variable is commute time because well-being score affects the commute time. O D. The explanatory variable is the well-being score and the response variable is commute time because commute time affects the well-being score. (b) Draw a scatter diagram of the data. Which of the following represents the data? O A. OB. Oc. D. 110- 70- 110- 70- 604 70 110 Time (min) 110 60 Time (min) 60 70 Score Score (c) Determine the linear correlation coefficient between commute time and well-being score. (Round to three decimal places as needed.)

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Chapter1: Starting With Matlab
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Question
The data in the table to the right are based on the results of a survey
comparing the commute time of adults to their score on a well-being
test. Complete parts (a) through (d) below.
Commute Time
Well-Being
(in minutes)
Score
4
69.5
16
68.1
E Click the icon to view the table of critical values of the correlation
26
67.8
coefficient.
34
67.4
46
66.6
65
65.3
103
63.2
(a) Which variable is likely the explanatory variable and which is the response variable?
O A. The explanatory variable is commute time and the response variable is the well-being score because well-being score affects the
commute time score.
O B. The explanatory variable is commute time and the response variable is the well-being score because commute time affects the
well-being score.
O C. The explanatory variable is the well-being score and the response variable is commute time because well-being score affects the
commute time.
O D. The explanatory variable is the well-being score and the response variable is commute time because commute time affects the
well-being score.
(b) Draw a scatter diagram of the data. Which of the following represents the data?
OA.
O B.
O C.
O D.
110-
70-
110-
70-
601
0-
60
Time (min)
0
60
110
Time (min)
70
110
70
Score
Score
(c) Determine the linear correlation coefficient between commute time and well-being score.
r=
(Round to three decimal places as needed.)
(d) Does a linear relation exist between the commute time and well-being index score? Select the correct choice below and fill in the answer box
to complete your choice.
(Round to three decimal places as needed.)
O A. Yes, the variables commute time and well-being score are negatively associated because r is positive and the absolute value of the
correlation coefficient is greater than the critical value
B. Yes, the variables commute time and well-being score are positively associated because r is positive and the absolute value of the
correlation coefficient is greater than the critical value
O C. Yes, the variables commute time and well-being score are negatively associated because r is negative and the absolute value of the
correlation coefficient is greater than the critical value
O D. No, the variables commute time and well-being score are not linearly related because r is positive and the absolute value of the
correlation coefficient is less than the critical value
O E. Yes, the variables commute time and well-being score are positively associated because r is negative and the absolute value of the
correlation coefficient is greater than the critical value
O F. No, the variables commute time and well-being score are not linearly related because r is negative and the absolute value of the
correlation coefficient is less than the critical value
Time (min)
Transcribed Image Text:The data in the table to the right are based on the results of a survey comparing the commute time of adults to their score on a well-being test. Complete parts (a) through (d) below. Commute Time Well-Being (in minutes) Score 4 69.5 16 68.1 E Click the icon to view the table of critical values of the correlation 26 67.8 coefficient. 34 67.4 46 66.6 65 65.3 103 63.2 (a) Which variable is likely the explanatory variable and which is the response variable? O A. The explanatory variable is commute time and the response variable is the well-being score because well-being score affects the commute time score. O B. The explanatory variable is commute time and the response variable is the well-being score because commute time affects the well-being score. O C. The explanatory variable is the well-being score and the response variable is commute time because well-being score affects the commute time. O D. The explanatory variable is the well-being score and the response variable is commute time because commute time affects the well-being score. (b) Draw a scatter diagram of the data. Which of the following represents the data? OA. O B. O C. O D. 110- 70- 110- 70- 601 0- 60 Time (min) 0 60 110 Time (min) 70 110 70 Score Score (c) Determine the linear correlation coefficient between commute time and well-being score. r= (Round to three decimal places as needed.) (d) Does a linear relation exist between the commute time and well-being index score? Select the correct choice below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) O A. Yes, the variables commute time and well-being score are negatively associated because r is positive and the absolute value of the correlation coefficient is greater than the critical value B. Yes, the variables commute time and well-being score are positively associated because r is positive and the absolute value of the correlation coefficient is greater than the critical value O C. Yes, the variables commute time and well-being score are negatively associated because r is negative and the absolute value of the correlation coefficient is greater than the critical value O D. No, the variables commute time and well-being score are not linearly related because r is positive and the absolute value of the correlation coefficient is less than the critical value O E. Yes, the variables commute time and well-being score are positively associated because r is negative and the absolute value of the correlation coefficient is greater than the critical value O F. No, the variables commute time and well-being score are not linearly related because r is negative and the absolute value of the correlation coefficient is less than the critical value Time (min)
le
i Critical Values
le
Critical Values for Correlation Coefficient
3 0.997
4 0.950
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
fre
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
iti
he
Print
Done
a
Transcribed Image Text:le i Critical Values le Critical Values for Correlation Coefficient 3 0.997 4 0.950 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 fre 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 iti he Print Done a
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