SOLUTION: You are given the following data. x y 2 18 3 17 4 2 5 7 5 16 7 4 7 12 Find: - SS(x) - SS(y) - SS(xy)

SOLUTION: You are given the following data. x y 2 18 3 17 4 2 5 7 5 16 7 4 7 12 Find: - SS(x) - SS(y) - SS(xy) - The linear correlation coeffici

Question 306451: You are given the following data.

x y
2 18
3 17
4 2
5 7
5 16
7 4
7 12
Find:
- SS(x)
- SS(y)
- SS(xy)
- The linear correlation coefficient, r
- The slope b1
- The y-intercept, b0
- The equation of the line of best fit.
Please explain how to do this. My professor is not helping me at all. I am so lost.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Check out this link.
http://mathworld.wolfram.com/CorrelationCoefficient.html
Plug your information into EXCEL where you can quickly manipulate data.
Find the average for x and y.
Then find the deviation of each data point from the averages.
SSxx=21.43
SSyy=256.86
SSxy=-36.29
Slope, b=SSxy/SSxx=-1.6933
b'=SSxy/SSyy=-0.141
r=b*b'=0.545

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