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 α = 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.