2. Consider the foot length and foot width of six female grade 4 students in Morning Star Montessori School in 2006: Length of foot (cm) Y 20.9 Width of foot (cm) X 8.5 24 9 19.6 7.9 22.6 8.8 21 8.8 21.6 9.3 For the next five items, refer to the problem above, in the previous page. In addition to the female grade 4 students, below are some of the boys measurements: Width of foot (cm) Length of foot (cm) Y 8.4 8.8 9.7 9.8 22.4 23.4 22.5 23.2 23.1 23.7 8.9 9.7 4. What is the y-intercept (bo) of the least squares regression line?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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2. Consider the foot length and foot width of six female grade 4 students in
Morning Star Montessori School in 2006:
Length of foot
(cm) Y
20.9
Width of foot
(cm) X
8.5
24
9
19.6
7.9
22.6
8.8
21
8.8
21.6
9.3
For the next five items, refer to the problem above, in the previous page.
In addition to the female grade 4 students, below are some of the boys
measurements:
Width of foot (cm) Length of foot (cm)
Y
22.4
23.4
22.5
23.2
23.1
8.4
8.8
9.7
9.8
8.9
9.7
23.7
4. What is the y-intercept (be) of the least squares regression line?
Transcribed Image Text:2. Consider the foot length and foot width of six female grade 4 students in Morning Star Montessori School in 2006: Length of foot (cm) Y 20.9 Width of foot (cm) X 8.5 24 9 19.6 7.9 22.6 8.8 21 8.8 21.6 9.3 For the next five items, refer to the problem above, in the previous page. In addition to the female grade 4 students, below are some of the boys measurements: Width of foot (cm) Length of foot (cm) Y 22.4 23.4 22.5 23.2 23.1 8.4 8.8 9.7 9.8 8.9 9.7 23.7 4. What is the y-intercept (be) of the least squares regression line?
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