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Question 1: The following data are results from a study you recently completed. Calculate the correlation coefficient for this data. (Show work or use excel print out)
X
Y
(X-X‾)
(Y-Y‾)
(X-X‾)2
(Y-Y‾)2
4
-1.6
-1.8
2.56
3.24
2.88
5
6
-0.6
0.2
0.36
0.04
-0.12
3
-2.6
-0.8
6.76
0.64
2.08
7
0.4
1.2
0.16
1.44
0.48
10
4.4
19.36
5.28
29.2
6.8
Question 2: Given the following information what is the regression equation? The value of r is (minus) -0.8908 with a standard deviation for X= 1.73 & Y= 3.34. The Mean of X = 4.875 and the Mean of Y = 10.625.
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