Question: Consider the following values for an independent and dependent variable:
x y
6 5
9 20
14 28
18 30
22 33
27 35
33 45
a. Determine the estimated linear regression equation relating the dependent and independent variables.
b. Is the regression equation you found significant? Test at the a = 0.05 level.
c. Determine both the residuals and standardized residuals. Is there anything about the residuals that would lead you to question whether the assumptions necessary to use regression analysis are satisfied? Discuss.