Question: X ? QUESTION 04 (20 points) - Simple Linear regression (SLR) We have the following hypothetical data for the independent variable x (other names: regressor,

X ? QUESTION 04 (20 points) - Simple Linear regression (SLR) We have the following hypothetical data for the independent variable x (other names: regressor, covariate, or explanatory variable) and the dependent variable y (regressand). Obs. x2 1 8.34 0.75 ? 2 3.21 2.37 10.30410 ? 3 5.96 3.80 ? 4 1.27 4.40 ? 5.58800 5 4.28 2.52 ? ? TOTAL ? ? ? (a) Use Excel to draw a y-x scatter diagram with y on the vertical axis. Add the linear trend line. (b) Complete the table. Use 5 decimals throughout your calculations if applicable. (c) Give an equation for and manually calculate the slope by. The table aids your calculations. (d) Give an equation for and calculate the y-intercept bo. Again, the table would help. (e) Write the sample regression equation. (f) Calculate predicted value for y at x = 7.0 (within x-data range interpolation). (g) Calculate predicted value for y at x = 1.0 (outside x-data range extrapolation)

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