Question

Consider the following sample data of X and Y:
X Y
8 ............ 22.30
6 ............ 16.71
9 ............ 25.21
6 ............ 15.84
1 ............ 2.75
8 ............ 21.22
2 ............ 5.27
1 ............ 2.32
10 ............. 27.39
7 ............ 19.35
a. Regress Y against X without any constraints. What is the regression equation? Predict Y when X = 10.
b. Force the regression line through the origin. What is the new regression equation? Predict Y when X = 10 with this equation.
c. Force the regression line to go through the point (5, 13). What is the new regression line? What is the new regression equation? Predict Y when X = 10 with this equation.
d. Regress Y against X with the constraint that the slope must be less than or equal to 2. What is the new regression equation? Predict Y when X = 10 with this equation.


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  • CreatedJune 03, 2015
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