MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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stats hw
Consider the data set shown. If the mean X value is 6 and the mean Y value
is 5, complete the first row of the table below
Y
X; - X Y; - Ỹ| (X; – X)² | (Y: -Ỹ)² | (X; – X)(Y; – Ý)
X
8.
-1
1
0.
1
-4
0.
16
8
4
-1
4
1
-2
9.
4
6.
X = 6 Y = 5
(a) What is the sum of squares for the X variable?
(b) What is the sum of squares for the Y variable?
(c) What is the sum of the products for this data set?
(d) What is the correlation coefficient for X and Y?
(e) What is the standard error of the correlation coefficient for these data?
고023
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Transcribed Image Text:Consider the data set shown. If the mean X value is 6 and the mean Y value is 5, complete the first row of the table below Y X; - X Y; - Ỹ| (X; – X)² | (Y: -Ỹ)² | (X; – X)(Y; – Ý) X 8. -1 1 0. 1 -4 0. 16 8 4 -1 4 1 -2 9. 4 6. X = 6 Y = 5 (a) What is the sum of squares for the X variable? (b) What is the sum of squares for the Y variable? (c) What is the sum of the products for this data set? (d) What is the correlation coefficient for X and Y? (e) What is the standard error of the correlation coefficient for these data? 고023
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