a. A set of n = 15 pairs of X and Y scores has SSx =...
a. A set of n = 15 pairs of X and Y scores has SSx = 10, SSy = 40, and SP = 30. What is the slope for the regression equation for predicting Y from X?
b. For the regression equation Y = 2X – 3, if the mean for X is x̅ = 5, what is the mean for Y?
Show work
Homework Answers
Ansa:
slope=sp/sxx=30/10=3
#slope=3
Ansb:
regression equation Y = b0+b1*x here b0=-3 and
b1=2 x̅ = 5 
b0=
-b1* x̅
=b0+b1*
x̅
=-3+2*5
=7
#mean of y=7
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