In Problems 7-12: (a) By hand, draw a scatter diagram treating x as the explanatory variable and y as the response variable. (b) Select two points from the scatter diagram and find the equation of the line containing the points selected. (c) Graph the line found in part (b) on the scatter diagram. (d) By hand, determine the least-squares regression line. (e) Graph the least-squares regression line on the scatter diagram. (f) Compute the sum of the squared residuals for the line found in part (b). (g) Compute the sum of the squared residuals for the least- squares regression line found in part (d). (h) Comment on the fit of the line found in part (b) versus the least-squares regression line found in part (d). NW 7. 8. 9. 10. X y X y y X y 3 4 3 0 -2 -4 -2 7 4 6 5 2 -1 0 -1 6 5 7 7 3 0 1 0 3 7 12 9 6 1 4 1 2 8 14 11 9 2 5 2 0
In Problems 7-12: (a) By hand, draw a scatter diagram treating x as the explanatory variable and y as the response variable. (b) Select two points from the scatter diagram and find the equation of the line containing the points selected. (c) Graph the line found in part (b) on the scatter diagram. (d) By hand, determine the least-squares regression line. (e) Graph the least-squares regression line on the scatter diagram. (f) Compute the sum of the squared residuals for the line found in part (b). (g) Compute the sum of the squared residuals for the least- squares regression line found in part (d). (h) Comment on the fit of the line found in part (b) versus the least-squares regression line found in part (d). NW 7. 8. 9. 10. X y X y y X y 3 4 3 0 -2 -4 -2 7 4 6 5 2 -1 0 -1 6 5 7 7 3 0 1 0 3 7 12 9 6 1 4 1 2 8 14 11 9 2 5 2 0
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section: Chapter Questions
Problem 10T: Olympic Pole Vault The graph in Figure 7 indicates that in recent years the winning Olympic men’s...
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Please do 10 & 12 all parts
Transcribed Image Text:In Problems 7-12:
(a) By hand, draw a scatter diagram treating x as the explanatory
variable and y as the response variable.
(b) Select two points from the scatter diagram and find the
equation of the line containing the points selected.
(c) Graph the line found in part (b) on the scatter diagram.
(d) By hand, determine the least-squares regression line.
(e) Graph the least-squares regression line on the
scatter diagram.
(f) Compute the sum of the squared residuals for the line found
in part (b).
(g) Compute the sum of the squared residuals for the least-
squares regression line found in part (d).
(h) Comment on the fit of the line found in part (b) versus the
least-squares regression line found in part (d).
NW 7.
8.
9.
10.
X
y
X
y
y
X
y
3
4
3
0
-2
-4
-2
7
4
6
5
2
-1
0
-1
6
5
7
7
3
0
1
0
3
7
12
9
6
1
4
1
2
8
14
11
9
2
5
2
0
Transcribed Image Text:12.
X
у
5
2
N
10
4
15
7
20
11
25
18
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