Below is a partial computer output based on a sample of 40 observations. Coefficient Constant 51.696 Standard Error 17.7 - 14.728 10.52 180.864 50.24 Analysis of Variance Source of Degrees Sum of Mean Variation of Freedom Squares Square Regression 19.412 9.706 Error 1.941.2 Required: Use the output shown above and write the estimated regression equation 2. Interpret the meaning of the coefficient of X, and X2. 3. compute the test statistic required to know whether the parameter bis significanti Below is a partial computer output based on a sample of 40 observations. Coefficient Constant 51.696 Standard Error 17.7 - 14.728 10.52 180.864 50.24 Analysis of Variance Source of Degrees Sum of Mean Variation of Freedom Squares Square Regression 19.412 9.706 Error 1.941.2 Required: Use the output shown above and write the estimated regression equation 2. Interpret the meaning of the coefficient of X, and X2. 3. compute the test statistic required to know whether the parameter bis significanti