suppose that you fit the model ey0 1x1 2x2 3x3 to 15 data points and found f equal to 5744 1 do

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Suppose that you fit the model E(y) = β0 + β1x1 + β2x2 + β3x3 to 15 data points and found F equal to 57.44. 1. Do the data provide sufficient evidence to indicate that the model contributes information for the prediction of y? Test using a 5% level of significance (F0.05 = 3.59). 2. The computer output for the multiple regression analysis provides this information: b0 = 1.04, b1 = 1.29, SE(b1) = 0.42, b2 = 2.72, b3 = 0.41, SE(b2) = 0.65, SE(b3) = 0.17. Which, if any, of the independent variables x1, x2, x3 contribute information for the prediction of y (use α = 0.05 and t0.025 = 2.201)? 3. What is the practical interpretation of the parameter β1?

          Suppose that you fit the model

E(y) = β0 + β1x1 + β2x2 + β3x3

to 15 data points and found F equal to 57.44.

1. Do the data provide sufficient evidence to indicate that the model contributes information for the prediction of y? Test using a 5% level of significance (F0.05 = 3.59).

2. The computer output for the multiple regression analysis provides this information: b0 = 1.04, b1 = 1.29, SE(b1) = 0.42, b2 = 2.72, b3 = 0.41, SE(b2) = 0.65, SE(b3) = 0.17. Which, if any, of the independent variables x1, x2, x3 contribute information for the prediction of y (use α = 0.05 and t0.025 = 2.201)?

3. What is the practical interpretation of the parameter β1?

Added by Carla T.

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