SOLUTION: The following sample observations were randomly selected.
X: 4,5,3,6,10
Y: 4,6,5,7,7
a. Determine the regression equation.
b. Determine the value of Ŷ when X is 7.
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Question 766645: The following sample observations were randomly selected.
X: 4,5,3,6,10
Y: 4,6,5,7,7
a. Determine the regression equation.
b. Determine the value of Ŷ when X is 7.
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
The regression equation minimizes the square of the difference between the values of the sample points and a line of the form . Carrying out the math, this gives
where
and
=number of samples,
= sum of ,
=sum of ,
=sum of ,
=sum of
This gives
The value for when is
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