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 Test score, y 0- 1 39 0 1 43 3 51 OB. 80+ 4 49 0- 4 65 Find the regression equation. y=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. A. 6 70 C GEWERB (a) x=3 hours (c) x=15 hours OC. Q OD. 80 (b)x=4.5 hours (d) x=3.5 hours

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Show supporting work for each section 

find regression equation 

choose correct graph 

a) predict the value of y for x=3

b) predict the value of y for x= 4.5

c) predict the value of y for x=15

d) predict the value of y for x=3.5 

complete table 

find the slope & intercept of the regression line 

K
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
Test score, y
Testscore
80
1
39
0
1
43
3
51
Find the regression equation.
y=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.
A.
OB.
Testscore
80-
0-
4
49
0
4
65
8
6
70
OC.
Testscore
10
(a)x= 3 hours
(c) x = 15 hours
0
8
Q
G
Testscore
D.
(b)x=4.5 hours
(d) x = 3.5 hours
80-
10
10
-00
8
01
777
Transcribed Image Text:K 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 Test score, y Testscore 80 1 39 0 1 43 3 51 Find the regression equation. y=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. A. OB. Testscore 80- 0- 4 49 0 4 65 8 6 70 OC. Testscore 10 (a)x= 3 hours (c) x = 15 hours 0 8 Q G Testscore D. (b)x=4.5 hours (d) x = 3.5 hours 80- 10 10 -00 8 01 777
9) Complete all parts:
Complete the table:
Ex=
Ey=
Ex=
X
Y
이이이
Ey² =
∑(xy) =
x2
Find the slope and intercept of the regression line:
Show the computations for the requested values of y
a)
y2
xxy
Transcribed Image Text:9) Complete all parts: Complete the table: Ex= Ey= Ex= X Y 이이이 Ey² = ∑(xy) = x2 Find the slope and intercept of the regression line: Show the computations for the requested values of y a) y2 xxy
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