Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below. Hours spent studying, x 0 2 2 Test score, y Test score 80- 0- 0 8 Hours studying OA. 55.2 OB. 52.7 OC. 60.1 Test score 40 43 50 49 Find the regression equation. ŷ=x+ (Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.) Choose the correct graph below. O A. OA. 97.5 OB. 55.2 OC. 60.1. O D. not meaningful B. 80- 4 0- 0 8 Hours studying ... 4 62 67 5 Q O C. Test score (a) x = 3 hours (c) x = 12 hours 80- 0+ 0 Hours studying 8 (a) Predict the value of y for x = 3. Choose the correct answer below. O D. Test score D. not meaningful (b) Predict the value of y for x = 3.5. Choose the correct answer below. 80- (b)x= 3.5 hours (d) x=4.5 hours 0- 0 8 Hours studying
Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below. Hours spent studying, x 0 2 2 Test score, y Test score 80- 0- 0 8 Hours studying OA. 55.2 OB. 52.7 OC. 60.1 Test score 40 43 50 49 Find the regression equation. ŷ=x+ (Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.) Choose the correct graph below. O A. OA. 97.5 OB. 55.2 OC. 60.1. O D. not meaningful B. 80- 4 0- 0 8 Hours studying ... 4 62 67 5 Q O C. Test score (a) x = 3 hours (c) x = 12 hours 80- 0+ 0 Hours studying 8 (a) Predict the value of y for x = 3. Choose the correct answer below. O D. Test score D. not meaningful (b) Predict the value of y for x = 3.5. Choose the correct answer below. 80- (b)x= 3.5 hours (d) x=4.5 hours 0- 0 8 Hours studying
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:Find the equation of the regression line for the given data. Then construct a scatter plot of
the data and draw the regression line. (The pair of variables have a
significant correlation.) Then use the regression equation to predict the value of y for each
of the given x-values, if meaningful. The number of hours 6 students spent for a test and
their scores on that test are shown below.
Hours spent studying, x 0
2
2 4 4 5
Test score, y
40 43 50 49 62 67
(a) x = 3 hours
(c) x = 12 hours
OA. 55.2
OB. 52.7
OC. 60.1
O D. not meaningful
(b) Predict the value of y for x = 3.5. Choose the correct answer below.
OA. 97.5
B. 55.2
OC. 60.1
OD. not meaningful
(c) Predict the value of y for x = 12. Choose the correct answer below.
OA. 52.7
OB. 97.5
OC. 60.1
O D. not meaningful
O A. 52.7
OB. 97.5
OC. 55.2
O D. not meaningful
(d) Predict the value of y for x = 4.5. Choose the correct answer below.
(b)x= 3.5
hours
(d)x=4.5
hours
Transcribed Image Text:4
Find the equation of the regression line for the given data. Then construct a scatter plot of
the data and draw the regression line. (The pair of variables have a
significant correlation.) Then use the regression equation to predict the value of y for each
of the given x-values, if meaningful. The number of hours 6 students spent for a test and
their scores on that test are shown below.
Hours spent studying, x 0
2 2 4 4 5
Test score, y
Find the regression equation.
y=x+
X+
C
Test score
80-
(Round the slope to three decimal places as needed. Round the y-intercept to two
decimal places as needed.)
Choose the correct graph below.
O A.
O B.
0-
0
8
Hours studying
40 43 50 49 62 67
OA. 97.5
OB. 55.2
O C. 60.1
P
Test score
D. not meaningful
80-
0-
0
8
Hours studying
O C.
Test score
(a) x = 3 hours
(c) x = 12 hours
80-
(a) Predict the value of y for x = 3. Choose the correct answer below.
0-
0
8
Hours studying
O D.
OA. 55.2
OB. 52.7
O C. 60.1
O D. not meaningful
(b) Predict the value of y for x = 3.5. Choose the correct answer below.
Test score
80-
(b)x= 3.5
hours
(d) x=4.5
hours
0-
0
8
Hours studying
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