(a) Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y. (b) Given that x = 3.8333, sx = 2.1370, y = 4.3000, sy = 1.5362, and r= -0.9321, determine the least-squares regression line. (c) Graph the least-squares regression line on the scatter diagram drawn in part (a).

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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(b)

A data set is given below.
(a) Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y.
(b) Given that x = 3.8333, s, -2.1370, y = 4.3000, sy = 1.5362, and r= -0.9321, determine the least-squares regression line.
(c) Graph the least-squares regression line on the scatter diagram drawn in part (a).
0-
X
y
1 2 3 5 6 6
5.4 6.0 5.6 3.4 2.5
2.9
Q
P
There appears to be a linear, negative relationship.
(b) y=x+
(Round to three decimal places as needed.)
O
M
0
0+
✔
I
✔
Transcribed Image Text:A data set is given below. (a) Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y. (b) Given that x = 3.8333, s, -2.1370, y = 4.3000, sy = 1.5362, and r= -0.9321, determine the least-squares regression line. (c) Graph the least-squares regression line on the scatter diagram drawn in part (a). 0- X y 1 2 3 5 6 6 5.4 6.0 5.6 3.4 2.5 2.9 Q P There appears to be a linear, negative relationship. (b) y=x+ (Round to three decimal places as needed.) O M 0 0+ ✔ I ✔
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