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 student spent for a test and their scores on that test are shown below. Hours spent studying, x 0 1 2 3 5 5 (a) x=2 hours (b)x= 3.5 hours (d) x=2.5 hours Test score, y 40 44 50 49 62 70 (c) x = 12 hours
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 student spent for a test and their scores on that test are shown below. Hours spent studying, x 0 1 2 3 5 5 (a) x=2 hours (b)x= 3.5 hours (d) x=2.5 hours Test score, y 40 44 50 49 62 70 (c) x = 12 hours
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter3: Straight Lines And Linear Functions
Section3.CR: Chapter Review Exercises
Problem 15CR: Life Expectancy The following table shows the average life expectancy, in years, of a child born in...
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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.
e th
Hours spent studying, x
0
1
2
3
5
5
(a) x = 2 hours
(b)x= 3.5 hours
(d) x=2.5 hours
Test score, y
40
44
50
49
62
70
(c) x = 12 hours
www
Find the regression equation.
ŷ=x+
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.
OB.
OC.
Q
Q
Q
Q
Q
G
at
VA!
nc
ork
link.
or ac
80-
0-
0
8
Hours studying
5
Test score
A
80-
H
0-
0
8
Hours studying
Test score
80+
19
0-
0
8
Hours studying
OD.
A
80-
0-
0
8
Hours studying
Q
7
Transcribed Image Text:C
(a) Predict the value of y for x = 2. Choose the correct answer below.
k.
A. 56.8
OB. 51.6
OC.
49.0
D. not meaningful
(b) Predict the value of y for x = 3.5. Choose the correct answer below.
A. 51.6
OB. 56.8
OC. 101.1
OD. not meaningful
(c) Predict the value of y for x = 12. Choose the correct answer below.
A. 56.8
ac
O O O
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