Question: 02. Thirty observations were employed in a multiple regression model for predicting Y from X1, X2 and X3. When the full model was fitted, the

02. Thirty observations were employed in a

02. Thirty observations were employed in a multiple regression model for predicting Y from X1, X2 and X3. When the full model was fitted, the residual sum of squares was 650 (SSRESfull=650) and type I and type II sum of squares were as shown below: Source X1 X2 X: Type ISS 100 140 60 Type II SS 20 120 60 a Test at the 5% level to see if any prediction is possible from the full model. Ftable = 2.98 Hint You should obtain an ANOVA table. b. Would prediction be as good if Xz were deleted from the model? Use a = 0.05. Ftable = 4.23

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