Thirty data points on Yand X are employed to estimate the parameters in the linear relation Y=a+bX The computer output from the regression analysis is shown at the top of the next page: DEPENDENT VARIABLE: Y R-SQUARE FRATIO P-VALUE ON F OBSERVATIONS: 30 0.5223 .8.747 0.0167 PARAMETER ESTIMATE STANDARD ERROR VARIABLE T-RATIO P.VALUE INTERCEPT 800.0 189.125 4.23 0.0029 -2.50 0.850 -2.94 0.0187 a a c. The equation of the sample regression line is b. The parameter estimate for a is Explain in your own words what it is telling you. The parameter estimate for bis Explain in your own words what it is telling you. c. If X equals 500, the fitted (or predicted) value of Y is Do you think is this the same as the observed value? Why? d. The fraction of the total variation in Y explained by the regression is percent. Thirty data points on Yand X are employed to estimate the parameters in the linear relation Y=a+bX The computer output from the regression analysis is shown at the top of the next page: DEPENDENT VARIABLE: Y R-SQUARE FRATIO P-VALUE ON F OBSERVATIONS: 30 0.5223 .8.747 0.0167 PARAMETER ESTIMATE STANDARD ERROR VARIABLE T-RATIO P.VALUE INTERCEPT 800.0 189.125 4.23 0.0029 -2.50 0.850 -2.94 0.0187 a a c. The equation of the sample regression line is b. The parameter estimate for a is Explain in your own words what it is telling you. The parameter estimate for bis Explain in your own words what it is telling you. c. If X equals 500, the fitted (or predicted) value of Y is Do you think is this the same as the observed value? Why? d. The fraction of the total variation in Y explained by the regression is percent