Consider the following values for an independent and dependent variable:
x y
6â€¦â€¦â€¦â€¦â€¦â€¦â€¦â€¦.5
9â€¦â€¦â€¦â€¦â€¦â€¦â€¦...20
14.â€¦â€¦â€¦â€¦â€¦â€¦â€¦28
18.â€¦â€¦â€¦â€¦â€¦â€¦â€¦15
22.â€¦â€¦â€¦â€¦â€¦â€¦â€¦27
27.â€¦â€¦â€¦â€¦â€¦â€¦â€¦31
33.â€¦â€¦â€¦â€¦â€¦â€¦â€¦32
50.â€¦â€¦â€¦â€¦â€¦â€¦â€¦60
61.â€¦â€¦â€¦â€¦â€¦â€¦.132
75.â€¦â€¦â€¦â€¦â€¦â€¦.160
a. Determine the estimated linear regression equation relating the dependent and independent variables.
b. Is the regression equation you found significant? Test at the Î± = 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? |

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